in a population of grasshoppers, the ratio of grasshoppers with a white marking to those without a white marking is 2:3. An entomologist captures and photographs 290 grasshoppers. How many photographs are likely to show grasshoppers with a white marking?
A. 193
B. 58
C. 112
D. 116

Answers

Answer 1

Answer:

D. 116

Step-by-step explanation:

Let the grasshoppers with a white marking be 2x.

Let the grasshoppers without a white marking be 3x.

2x + 3x = 290

5x = 290

x = 290 / 5

x = 58

The grasshoppers with a white marking

= 2x

= 2 ( 58 )

= 116


Related Questions

Amanda can jog 18 miles in 5 hours.

Answers

Answer:

the probelm does not make sense

Step-by-step explanation:

you can try dividing

Answer:

14.4 miles

Step-by-step explanation:

Amanda can jog 18 miles in 5 hours.

At the same rate how many miles can Amanda jog in 4 hours=??

solution:

Distance covered by Amanda in 5 hours = 18 miles

Distance covered in  1 hour = 18/5 miles

Distance covered in  1 hour is =3.6

Distance covered in 4 hours = 4*3.6=14.4

Hence Amanda can jog 14.4 miles in 4 hours

There are 90 kids in the band. 20% of the kids own their instruments, and the rest rent them. What percentage of kids either rent or own and instrument

Answers

Answer:

im conufesed

Step-by-step explanation:

Answer:

18 kids own their own instruments

72 kids rent instruments

80%rent 20%own

Step-by-step explanation:

? Help
Which number will make the two fractions
10 5
equivalent?
38 ?
OA) 2
B) 5
C) 18
D) 19

Answers

Answer:

9

Step-by-step explanation:

Answer:

9

Step-by-step explanation:

it is just right my brudda

five million ninety thousand thirty nine​

Answers

Answer:

5,090,039

Step-by-step explanation:

Are you trying to number it out?

Answer:

5,090,039

Step-by-step explanation:

Just separate them, do them one at a time and add them all together

5,000,000

     90,000

+          039

___________

Hope this helps

~R3V0

Help please on my delta maths I’m desperate pleas it’s due by tonight

Answers

Answer: $21.60

Explanation: the phone originally costs $24 and is on a discount of 10%. this means that the price after the discount will be 90% of the original price, since the discount is 10% OFF.

to find 90% of 24, multiply 24 by .90, which is the decimal value of 90%.

24 x .90 = $21.60

Nora is definitely getting scammed because there's no way a phone is that cheap

simplify 18/13-2/13 I cant figure it out plz help​

Answers

Answer: 1 3/13

Step-by-step explanation:

C=3y
2
+4y+4
D=−7y
2
+3y−6

Answers

Answer:

Johannes Gutenberg - Wikipediahttps://en.wikipedia.org › wiki › Johannes_Gutenberg

Johannes Gensfleisch zur Laden zum Gutenberg was a German goldsmith, inventor, printer, and publisher who introduced printing to Europe with his ...

Occupation: Engraver, ‎inventor‎, and printer‎

Born: Johannes Gensfleisch zur Laden zum G...

Died: February 3, 1468 (aged about 68); Mainz‎, ...‎

Known for: The invention of the movable-type ...

‎Early life · ‎Printing method with... · ‎Legacy · ‎References

People also ask

Step-by-step explanation:

Holly has4/6quart of potato salad. She gives2/6
quart to a friend,
How much potato salad does she have left?

Answers

Answer:

Hi! The answer to your question is [tex]1/3[/tex]

Step-by-step explanation:

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☆Brainliest is greatly appreciated!☆

Stay Safe!!!

Hope this helps!!

- Brooklynn Deka

Molly watches television 3 hours less than Leslie in one
week. Leslie watches television for 72 hours in one week.
How many hours does Molly watch television?

Answers

Answer:

69 hours

Step-by-step explanation:

just subtract 72-3 and 69 is the answer

Answer:

Molly watches television for 69 hours

Step-by-step explanation:

72-3= 69

Sarah is saving to buy a new phone. She needs $150, and she has already saved $63. Write an equation to model this situation. Let
x represent the amount of money Sarah needs.
A)
X-63 = 150
B)
x+63 = 150
X + 150 = 63
D)
X - 150 = 63

Answers

the correct answer choice should be letter A as in Ana.

Answer:

B.

Step-by-step explanation:

x+63=150

x+63-63=150-63

x=87

She needs 87 more dollars for her new phone.

write down the number in a condensed form:
200 + 40 + 5 +0.3 + 0.07

Answers

Answer:

answer is 240.37

Step-by-step explanation:

i added each one together add the ends and then got 240.37 (btw I'm in 4 grace)

The condensed form of the given expression 200 + 40 + 5 +0.3 + 0.07 is 245.37.

Given expression is [tex]200 + 40 + 5 +0.3 + 0.07[/tex]

It is required to find condensed form.

What is condensed form of an expression?

Condensed form is the representing the expression in the composite way.

By solving the expression

[tex]=200 + 40 + 5 +0.3 + 0.07[/tex]

[tex]=245.37[/tex]

Thus, the condensed form of the given expression is 245.37.

Learn more about the condensed problems here:

https://brainly.com/question/24536701

Answer please I am in school so I don’t want to be shed by a dum link

Answers

Answer:

Sorry if I got it wrong.

Step-by-step explanation:

You add them together then devide by 3 so 333.333333333 squar feet per gallon so the art room is 400 so I would say about 1.5 or close to that

What is the equation needed to solve for X?

Answers

2.4 is the right answer my guy

Answer:

[tex]x - 8 + 4x - 7 = 180 \\ \\ 5x - 15 = 180 \\ \\ 5x = 180 + 15 \\ \\ 5x = 195 \\ \\ x = 195 \div 5 \\ \\ x = 39 \\ [/tex]

an item is regularly priced at 29. Joe bought it at a discount of 45% off the regular price.​

Answers

Answer:

$13.05

Step-by-step explanation:

The prize will be $13.05 after the discount.

29x45%=13.05

        OR

29x0.45=13.05

beth owes 17000 on her car loan. the interest rate on her loan is 4.25% she will be paying this loan off in 4 years how much will beth pay all together?

28,900
19,890
2890
45,900

Answers

Answer:She has to pay $20078.7 amount.

Step-by-step explanation:

Given : Beth owes 17,000 on her car loan. The interest rate on her loan is 4.25% She will be paying this loan off for 4 years.

To find : How much will she pay altogether?

Solution :

Using compound interest formula,

A = P(1 + r)

Where A is the amount

P is the principle P=17,000

P is the rate r=4.25%=0.0425

t is the time t= 4 years

Substitute the value,

Therefore, She has to pay $20078.7 amount.  

Sam is making a picture frame. He is gluing craft sticks end-to-end to a piece of cardboard. The sticks do not overlap. The top of the frame is 18 and one-third inches long. Each craft stick is 3 and one-third inches long.

How many craft sticks will Sam glue to the cardboard to make the top of the frame?

Answers

Answer: 5 1/2

Step-by-step explanation:

I took the test ig, but im not 100% sure

PLEASE HELP I WILL MARK BRAINLIEST
Part A
At most, Marc can spend $50 on sandwiches and chips for a picnic his art club is having. He already bought chips for $6 and will buy sandwiches that cost $4.50 each. Write an inequality to show how many sandwiches (s) he can buy.

Part B
Solve the inequality to show the maximum amount of sandwiches he can buy.

Answers

Answer:

Part A: y=4.50x+6

Part B: $46.50=4.50(9)+6

Marc can buy up to 9 sandwiches ($40.5) plus chips ($6) without going over $50.

WHO CAN solve it Please !

Answers

Answer:

a) True

     [tex]\int\limits^\pi _ {0} \,(\sqrt{1-sin^{2}\alpha } )d\alpha =0[/tex]

Step-by-step explanation:

Step(i):-

Given that the definite integration

           [tex]\int\limits^\pi _ {0} \,(\sqrt{1-sin^{2}\alpha } )d\alpha[/tex]

we know that the trigonometric formula

sin²∝+cos²∝ = 1

           cos²∝ = 1-sin²∝

step(ii):-

Now the  integration

        [tex]\int\limits^\pi _ {0} \,(\sqrt{1-sin^{2}\alpha } )d\alpha = \int\limits^\pi _0 {(\sqrt{cos^{2} \alpha } } \, )d\alpha[/tex]

                                     = [tex]\int\limits^\pi _0 {cos\alpha } \, dx[/tex]

Now, Integrating

                                 [tex]= ( sin\alpha )_{0} ^{\pi }[/tex]

                               = sin π - sin 0

                              = 0-0

                             = 0

Final answer:-

     [tex]\int\limits^\pi _ {0} \,(\sqrt{1-sin^{2}\alpha } )d\alpha =0[/tex]

Ms. Marcus saws an 8-foot board into 2 pieces. One piece is 3.625 feet long. What is the length of the other piece?​

Answers

Answer:

4.375

Step-by-step explanation:

Taking off the length, we know you need to subtract. We can write out the answer as 8-3.625 which is 4.375.

By the way can you follow me on Brainly?

Thanks!

What Is The Perimeter ? If Necessary, Round To The Nearest Tenth

Answers

Answer:

4 yd

Step-by-step explanation:

The perimeter of a triangle is 9.12 yards.

What is the perimeter?

The perimeter of a shape is defined as the total distance around the shape. It is the length of the outline or boundary of any two-dimensional geometric shape. The perimeter of different figures can be equal in measure depending upon the dimensions.

By using Pythagoras theorem, we get

c²=4²+1²

c²=17

c=√17

c=4.12 yd

Now, perimeter = 4+1+4.12

= 9.12 yd

Therefore, the perimeter of a triangle is 9.12 yards.

To learn more about the perimeter visit:

https://brainly.com/question/6465134.

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A rectangle garden is 30 feet wide if its area is 2700 ft.² what is the length of the garden?

Answers

Answer:

The answer is 90

Step-by-step explanation:

A= L*W

so when you are given the are and the width you need to divide the area by the width to find the length

Need help quick please

Answers

Answer:

line 2

Step-by-step explanation:

on line 2 the two minuses at the end turn into a + (where the -2 is there should be a +2) because - x - = +

What is the value of x in the triangle?

I need help pls :)

Answers

Answer:

17

Step-by-step explanation:

using Pythagorus theroem, you do (√514)² - 15².

This gives you 289 which you then need to square root, giving you 17

The answer your looking for is B explanation : hope this helps :)


Which of the following represents 104Σ6?
n=1
O (1 x 6) + (104 x 6) = 630
O (1x6) (104 x 6) = 3,744
O 6(104) = 624
O 6(104 - 1) = 618

Answers

Answer:

C. 6(104)=624

Step-by-step explanation:

edge quiz

The equivalent expression of [tex]\sum \limits^{104}_{n = 1} {6}[/tex] is 6(104) = 24

How to evaluate the sigma notation?

The sigma notation is given as:

[tex]\sum \limits^{104}_{n = 1} {6}[/tex]

The above means that we add 6 in 104 places.

i.e. 6₁ + 6₂ + ................ + 6₁₀₄

The expression can be expressed using the following product

[tex]\sum \limits^{104}_{n = 1} {6} = 6 * 104[/tex]

Evaluate the product

[tex]\sum \limits^{104}_{n = 1} {6} = 624[/tex]

Hence, the equivalent expression of [tex]\sum \limits^{104}_{n = 1} {6}[/tex] is 6(104) = 24

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Find the equation on the line
Use exact number
Y=_x+_
NEED ASAP PLEASE

Answers

Answer:

1.5x+3

Step-by-step explanation:

......

.

..........

Please anyone help me on this

Answers

Can you type what it says I can't see it that well.

i cant really see the question

Matthew bought flowers for his mother. Exactly 1/4 of the roses were white. How many roses were white?

Answers

Answer:

1/4

Step-by-step explanation:

jdkdbejenrdjeiuidur

Given m∠3+m∠8=180° .

Answers

Answer:

5.175117

Step-by-step explanation:

I need this one, please

Answers

Answer:

eeeeeeeeeeeeeeeeeeeeeeeeeeeee

A 4-column table with 5 rows. The first column is labeled age (years) with entries 1, 2, 3, 4, 5. The second column is labeled given value with entries 15, 12, 9, 5, 4. The third column is labeled predicted with entries 14.8, 11.9, 9, 6.1, 3.2. The fourth column is labeled residual with entries 0.2, 0.1, 0, negative 1.1, 0.8. Which point would be on a residual plot of the data?

Answers

Answer:

3,0

Step-by-step explanation:

From the table we can say that the point which is residual plot of the data is (3,0).

What is residual plot?

Residual plot shows the difference between observed and fitted values of the data. It is also known as null residual plot. In this random values in data is taken.

How to find point?

We have been given the following table:

Age          Value             Predicted                           Residual

1                  15                  14.8                                      0.2

2                 12                  11.9                                       0.1

3                 9                   9                                           0

4                 5                    6.1                                         1.1

5                 4                    3.2                                        0.8

If we observe the table then we can find that the third row of fourth column contains 0 so the point which is residual plot of the data is (3,0).

Hence the point which contains the residual plot of the data is (3,0).

Learn more about two residual plot at https://brainly.com/question/16821224

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