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Ganezh [65]
3 years ago
12

The questions in the first section on a test are worth 3 points and the questions in the second section are worth 5 points. Let

x represent the number of correct questions from the first section, and let y represent the number of correct questions from the second section. Sydney earned more than 80 points on the test. The inequality representing her score is 3x+5y>80. If Sydney answered 15 questions in the first section correctly, what is the minimum number of questions she must have answered correctly in the second section? 1 2 7 8
Mathematics
2 answers:
klemol [59]3 years ago
5 0

Answer:

yes it is 8

Step-by-step explanation:

Nonamiya [84]3 years ago
4 0

Answer:

8

Step-by-step explanation:

edge 2020

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The length of overline CD is 12 units. C^ prime D^ prime is the image of overline CD under a dilation with a scale factor of n.
Rufina [12.5K]

Answer:

A, D , and E

Step-by-step explanation:

We have that:

\overline{CD} = 12 \: units

\overline{C'D'}

is the image of CD after a dilation of scale factor n.

We use the relation between the image length and object length:

\overline{C'D'} = n \times \overline{CD}

Option A

If n=3/2, then

\overline{C'D'}  =  \frac{3}{2}  \times 12 = 3 \times 6 = 18 \: units

This is true.

Option B

If n=4, then

\overline{C'D'} = 4 \times 12 = 36 \: units

This is false.

Option C

If n=8, then

\overline{C'D'} = 8 \times 12 = 96 \: units

This too is false.

Option D

If n=2, then

\overline{C'D'} = 2 \times 12 = 24 \: units

This is true

Option E

If n=3/4, then

\overline{C'D'} =  \frac{3}{4}  \times  12

\overline{C'D'} =  3 \times 3 = 9 \: units

This is also true.

4 0
3 years ago
What is a positive times a negative
sergejj [24]

Answer:When you multiply a negative number to a positive number, your answer is a negative number. It doesn't matter which order the positive and negative numbers are in that you are multiplying, the answer is always a negative number.

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
QUICK HELP!!!!!!!!!!!!!!!!
JulijaS [17]

Answer:

Its C im pretty sure. Also loveee your pfp!

3 0
3 years ago
What is the value of x in the equation ex- y = 30, when y = 15?
Bumek [7]

Answer:

x = 45

Step-by-step explanation:

Solution:

x - y = 30

x - 15 = 30   ( y = 15 given)

x = 30 + 15

Therefore, x = 45

PLEASE MARK ME AS BRAINLIEST!!!

ALSO DON'T FORGET TO CHECK OUT THIS BLOG WHICH TEACHES YOU SMALL SCIENCE CONCEPTS EVERYDAY AND DONT WORRY ITS ABSOLUTELY FREE AND ITS REALLY BRIEF CONCEPTS:

ITS CALLED dynamicscience

4 0
3 years ago
Danielle has $6.65 worth of change in nickels and dimes. If she has 5 times as many nickels as dimes, how many of each type of c
evablogger [386]

Answer:

95 nickels 19 dimes

Step-by-step explanation:

d=dimes

5d=nickels

0.05(5d) + 0.10(d) = 6.65

0.25d + 0.10d = 6.65

0.35d=6.65

Divide by 0.35

d= 19 (19 coins)

19 dimes =$1.9

6.65-1.9= $4.75

Nickels=$4.75

4.75/0.05 = 95 coins

19*5=95

  114 coins in total

19*0.10 = 1.9

95*0.05=4.74

4.75+1.9= 6.65

4 0
3 years ago
Read 2 more answers
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