3 years ago

Hi, I need help with a practice SAT question on math. The problem is in the picture.

Mathematics

1 answer:

bagirrra123 [75]3 years ago

3 0

Answer:

2.5

Step-by-step explanation:

The equation will have infinite solutions when it is a tautology--when both sides say exactly the same thing.

Eliminate parentheses, match coefficients, and solve for b.

ax +ab = 4x +10

a = 4 . . . . . . coefficient of x

ab = 10 . . . . constant

Since we know a, we can find b:

4b = 10

b = 10/4 . . . . . . . divide by 4

b = 5/2 = 2.5 . . .express in your favorite form

You might be interested in

The perimeter of a square must be less than 160 feet. what is the maximum length of a side in feet

Andre45 [30]

So the closest thing to the 160 if u r dividing the 4 sides would be 156 which would b the answer hope this hellped

5 0

4 years ago

What is the square root of 81

motikmotik

Answer:

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers

Which of the following is a factor of x4 + 5x3 - 4x2 - 8x + 6? <br> 2x+3<br> x-1<br> 2x-3<br> x+1

muminat

Answer:

x + 1

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

Joshua wrote 13 articles for the school newspaper this year. Paulette wrote 7 more articles than Joshua. Jeff wrote as many arti

Keith_Richards [23]

53 articles? Because josh wrote 13 plus 20 that Paulette wrote then Jeff wrote as many as Paulette so another 20.

6 0

4 years ago

One-third of a number is 2 greater than one-sixth of the same number. What is the number?

Mamont248 [21]

Answer:

number is 12

Step-by-step explanation:

One-third of a number is 2 greater than one-sixth of the same number

Let the unknown number be x

One-third of x is 2 more than one-sixth of x

$\frac{1}{3} x=2+\frac{1}{6} x$

least common denominator is 6, multiply each term by 6

$2x=12+x$

subtract x from both sides

x=12

So the number is 12

6 0

3 years ago