SAT High School

what is 20+2
this is to pay someone back

Answers

Answer 1

The answer to this question is 22.

Answer 2

Answer:22

Explanation:

Related Questions

A bag contains balls that are red, green, or blue. One third of the balls are red, and 2/7 are blue. The number of green balls is eight fewer than the twice the number of blue balls. How many green balls are in the bag?

Answers

Answer:

16 green balls

Explanation:

x = total balls in bag

Red = 1/3x

Blue = 2/7x

Green = -8+2(2/7x)

Since these are balls, the answers have to be whole numbers. The equations representing the different colors contain fractions and have denominators 3 and 7. So the total number of balls, represented by x, needs to be a factor of 3 and 7. So I did a trial and error thing here:

First possible common denominator = 21, which is 3x7

We test that there are 21 balls in the bag. Substituting 21 into the equations for red, blue and green we get:

red =  1/3(21) = 7

blue = 2/7(21) = 6

green = -8+2(2/7)(21) = 4

But if you add up the colors: 7+6+4 = 14 which is < 21

So we test another common denominator

Next possible common denominator = 42, which is 3x7x2

So we test that there are 42 balls in the bag. Substituting 42 into the equations for red, blue and green we get:

red =  1/3(42) = 14

blue = 2/7(42) = 12

green = -8+2(2/7)(42) = 16

If you add up the colors: 14+12+16 = 42

F(x)=x^2-b. In the function above? b is constant. If F(-2)=7, What is the value of F(b)?

Answers

Answer:

so substitute in -2 as x, first do the exponent -2 squared equals 4 then 4-?=7 the answer is -3

Explanation:

-3

three differnet golfers played

Answers

Answer:

Rory: 42 strokes per 9 holes

Jordan: 79 strokes per 18 holes

Ricky: 123 strokes per 27 holes

Explanation:

Answer:

nope

Explanation:

because nopeeeeeeeeeeeeeee lol lol lol lol lol

If 3x + 8 = 23, what is the value of x + 4 ?

Answers

Answer:

9

Explanation:

First we solve for x. Subtracting 8 from both sides gives us 3x = 15, therefore x would be 5. Then we plug that into the second question, which gives us 5+4, which is 9.

X is 5
x+4 is the question
5+4= 9
the answer is 9

How can you test a water source to see whether it is acidic or not

Answers

Answer:

The easiest way to test if water is acidic is to use litmus paper. Litmus paper is a paper that contains special dyes that will change color when exposed to acids or bases. In your case, if you dip blue litmus paper into water samples and it turns pink or red, then the water is acidic.

Answer:

Okay mate

Explanation:

The easiest way to test if water is acidic is to use litmus paper. Litmus paper is a paper that contains special dyes that will change color when exposed to acids or bases. In your case, if you dip blue litmus paper into water samples and it turns pink or red, then the water is acidic.

A line in the xy-plane passes through the points (1,-2) And has a slope of 1/3. Which of the following points lies on the line?

A) (3,-2)
B) (2,-4/3)
C) (0,-2)
D) (-1,-8/3)

Answers

Answer:

D) (-1,-8/3)

Explanation:

To solve this we need the point-slope formula, because we are given a point and a slope.

y-y₁=m(x-x₁)

In this problem, m=1/3 and (x₁, y₁)=(1, -2)

So when we plug these into the formula we have

y- -2 = 1/3(x-1)  (I will rewrite y - -2 as y+2 because subtracting a negative is the same as adding a positive).

y+2 = 1/3(x-1)  

Now we can plug each of the points from the multiple choice into the equation. If one of them works (gives us a true statement), that's our answer.

A) use 3 for x and -2 for y.

-2 + 2 = 1/3 (3-1)

0 = 1/3 (2)

0=  2/3 This is not correct, so A is not the answer.

B) use 2 for x and -4/3 for y

-4/3 + 2 = 1/3 (2-1)

2/3 = 1/3 (1)

2/3 = 1/3 This is not correct, so B is not the answer.

C) Use 0 for x and -2 for y.

-2+2 = 1/3(0-1)

0=1/3(-1)

0=-1/3 This is not correct, so C is not the answer

D) Use -1 for x and -8/3 for y.

-8/3 +2=1/3(-1-1)

-2/3 = 1/3(-2)

-2/3 = -2/3 This is a true statement. Plus, we had already eliminated A, B, and C, so it would have to be D if our calculations were correct.

5 the power of b is 125, what will be 5 the power of b minus 3

Answers

5 the power of b which is 125 minus 3 is 122

if f(x+1)=-1/2x+6, what is the value of f(-3)?

Answers

Answer:

8

Explanation:

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