Ask question

Ask question

All categories

2 years ago

7

A student answers 90% of the questions on a math exam correctly. If she answers 27 questions correctly, how many questions are

on the exam?

1 answer:

alexandr1967 [171]2 years ago

6 0

Answer:

30 questions

Step-by-step explanation:

You can discover this by doing 27 divided by . 90 which equals 30.

You might be interested in

There are 800 students at Prestfield School. 45% of these 800 students are girls

balandron [24]

10%= 80
5%=40
80 x 4= 320
320+40=360

the answer is 360

8 0

3 years ago

Carlos will spend at most $29 on gifts. So far, he has spent $15. What are the possible additional amounts he will spend?

MariettaO [177]

Answer:

the possible amounts that he will spend is $29-$15=$14

4 0

3 years ago

Write the number in standard form and expanded form. Three million four hundred eighty- seven thousand six hundred fifty-one

snow_tiger [21]

Answer:

down below

Step-by-step explanation:

3,487, 651

(3 x 1,000,000) + (4 x 100,000) + (8 x 10,000) + ( 7 x 1,000) + (6 x 100 ) +

(5 x 10) + (1 x 1)

7 0

3 years ago

What are all of the powers of 3 in range 3 to 1000

Agata [3.3K]

3*1 = 3
3*2 = 9
3*3 = 27
3*4 = 81
3*5 = 243
3*6 = 729

6 0

3 years ago

Two students, Carlos and Sophie, factored the trinomial -4x2 − 10x + 6. Sophie factored it as -2(2x − 1)(x + 3) and Carlos facto

damaskus [11]

Sophie has factored the term completely while Carlos has not factored the term completely.

Step-by-step explanation:

We need to factor the trinomial:

$-4x^2-10x + 6$

Factoring:

$-4x^2-10x + 6\\Taking\,\,-2\,\,common:\\-2(2x^2+5x-3)\\Now\,\,factoring:\\-2(2x^2+6x-x-3)\\-2(2x(x+3)-1(x+3))\\-2(2x-1)(x+3)$

So, the factored form of $-4x^2-10x + 6$ is $-2(2x-1)(x+3)$

So, Sophie has factored the term completely. The terms are factored when we cannot further simplify it. Since Carlos factored (x+3)(-4x+2) 2 can be taken common from the term (-4x+2) so, it is not factored completely.

Keywords: Factoring the terms

Learn more about Factoring the terms at:

#learnwithBrainly

7 0

3 years ago