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sweet-ann [11.9K]
3 years ago
10

This is the front half of my study guide please help me​

Mathematics
1 answer:
Olegator [25]3 years ago
8 0

1. 624 students

If you multiply .24 (24%) by 2600, you'll find that the answer is 624.

2. 11% increase in protein

Divide 48 by 54 (48 ÷ 54), you'll notice the answer is around 0.88888. Next subtract 0.88888 by 1. The answer will be around 0.11111.

3. 44% sale

Divide 200 by 360 (200 ÷ 360). The answer will be around 0.5555555556. Next, subtract this number from 1. THIS answer is equal around 0.4444444.

4. 9 players were NOT eligible

Multiply 60 by 0.85 (85%). The answer to this is 51. Subtract 51 from the original number (60). The answer is 9.

5. 420 students plan to go to college

Multiply 1200 by 0.35 (35%). The answer to this is 420.

6. 20% don't have an Instagram account

To make this easier, we'll double to statistics (instead of 4 out of 5, it's 8 out of 10). 8 divided by 10 = 0.8. Subtract 0.8 from 1. Now, you have you're answer: 0.2 or 20%.

I hope this helps! Sorry if some were incorrect. :)

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How many solutions?<br><br> y = 5(x – 4)<br> 4x + 12 = -y
kakasveta [241]

Answer:

One solution, x = 8/9

Step-by-step explanation:

One way to solve this is to take one equation and substitute into the other and then solve. So, take y=5(x-4) and put that into the other equation.

4x + 12 = -y

4x + 12 = -(5(x-4))       <--- substitution here

4x + 12 = -5(x-4)

4x + 12 = -5x + 20     <-- simplifying

4x + 5x = 20 - 12

9x = 8

x = 8/9

4 0
3 years ago
Please finish this problem and make sure it’s 100% right thank you
mash [69]

Answer:

Example of Vertical angles: angle RTS and angle STE

Another Example of vertical angles: angle RTS and angle LTE

Verticles angles are Angles opposite of each other formed by intersecting lines.

7 0
2 years ago
For 15 points Select the correct answer.<br> What is |-14|?
cestrela7 [59]

Answer:

D. Positive 14.

Step-by-step explanation:

The absolute value is the distance between a number and zero. The distance between -14 and 0 is 14. Therefore, the answer is positive and not negative.

Hope this helps! :D

Edit: Thank you so much for brainliest! One away from Ace rank!

3 0
3 years ago
Write 90cm as a fraction of 1.5m.Give your answer in its simplest form.​
arlik [135]
90cm:1.5m=90cm:150cm=9:15=3:5=3/5
8 0
3 years ago
Read 2 more answers
Find the value of n that makes DEF-XYZ when<br> DE = 4, EF = 5, XY = 4(n + 1). YZ = 7n - 1, and
oksano4ka [1.4K]

Answer: n=3

Step-by-step explanation:

Understand that you need to set up a proportion before you can try to solve the question through guessing. In this case, YZ would be proportional to XY as EF is proportional to DE. You would write this as: EF/DE=YZ/XY.

Now you want to write an equation. In order to do this remember to multiply by your proportion. Here’s my equation:

5/4(4n+4)=7n-1. Now distribute:

5n+5=7n-1. Now simplify:

6=2n. Now simplify again:

n=3

Hope this helps you with your big ideas math hw!

3 0
3 years ago
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