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2 years ago

Ms. Roel wrote down her students' grades that were between 90 and 100. This shows the grades she wrote.

Mathematics

2 answers:

Hatshy [7]2 years ago

5 0

Maria - 97 because 97 is only divisible by 1 and the number itself.

atroni [7]2 years ago

4 0

Answer:
the student who have a prime number is Maria
Step-by-step explanation:

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Can someone help me pls

Artyom0805 [142]

Answer:

Havent learned it yet

Step-by-step explanation:

sorry my bad how do i

7 0

2 years ago

7. A city lot is twice as long as it is wide, If its perimeter is 480 units, what are the dimensions of the lot?

g100num [7]

Answer:

Step-by-step explanation:

P = 480

P = 2 length + 2 width

but we also know that

2width = length

so plug that into the length

P = 2(2width) + 2 width

480 = 4 width + 2 width

480 = 6 width

80 = width

160= length

see?

3 0

3 years ago

Write 45 as a product of prime factors.

Marina CMI [18]

First, we determine the factors of 45. We can immediately note that 45 is the product of 9 and 5. Out of 9 and 5, 9 can further be expressed into the product of 3 and 3. The prime factorization therefore is,
45 = 3 x 3 x 5
Since the factors in the right-hand side of the equation are already prime numbers then, this factorization can no longer be written in simpler forms.

6 0

3 years ago

The sum of four consecutive even integers is -28

mina [271]

I guess you want to find the 4 numbers

x + x + 2 + x + 4 + x + 6 = -28
4x + 12 = - 28
4x = - 40
x = -10

so the numbers are -10, -8, -6 ,-4.

8 0

3 years ago

Given the equation 4x + 7 = 3(2x − 5), solve for the variable. Explain each step and justify your process.

MariettaO [177]

Part 1: $4x + 7 = 3(2x - 5)$

$4x+7=6x-15$

$7=6x-15-4x

$

$7=2x-15$

$7+15=2x$

$22=2x$

$22=2x / 2$

$x=11$

Part 2: Sam is not correct because he messed up the second step. He added 2x on both sides to get 7x, instead he should have subtracted.

5 0

3 years ago