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aleksklad [387]
3 years ago
9

In a school, 50% of students are younger of students younger than 10, 1/2 are 10 years old and 1/10 are older than 10 but younge

r than 12, the remaining of students are 12 years or older. How many students are 10 years old?
Mathematics
1 answer:
Stels [109]3 years ago
8 0

Answer:

jddossjienrufhddddhdudjdj

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I have been stuck on number 10 (this problem) for a while now. Can anyone help me with it and walk me through every step in orde
kotykmax [81]
When you multiply a same number but with different powers, you can simply add the powers together. So, in your question, add the powers -1 and -7 together.
7^(-1) x 7^(-7) = 7^(-8)

When you divide a same number but with different powers, you subtract the power at the top with the power from the denominator. So, -8 - (-7) = -1.
7^(-8) / 7^(-7) = 7^(-1)

So your answer would be 7^(-1).
Hopefully my explanation was clear?
5 0
3 years ago
Read 2 more answers
Hi can someone help me with the last two sets of shapes? Thank you so much! -Jenn
SOVA2 [1]
You are correct there's at least one obtuse angle
8 0
3 years ago
Anyone mind helping me out?
Igoryamba

Answer:

611 square miles

Step-by-step explanation:

Area of triangle = (1/2)*a*b*sinC (formula when u are not given the height of the triangle, but u are given with the angle.)

= (1/2)*30*47*sin(60°)

= 610.54 square miles (2 d.p)

≈611 square miles (rounded to nearest mile)

:)

4 0
3 years ago
Write a subtraction sentence using integers.than,write the equivalent addition sentence and explain how to find the sum.please h
nata0808 [166]

Answer:

First option: 10 - (1) = 9

Second option: 10 - 5 + 4 = 5 + 4 = 9

Step-by-step explanation:

(10 -5) -4 = 5 - 4 = 1

Equivalent equation: 10 - 5 - 4 = 1

10 - (5-4) = there would be 2 ways to do this, you can either solve the equation in the bracket first or break it out. Because the sign before the bracket is minus so when you break it out, the minus sign in the bracket would become -- or equal to +

First option: 10 - (1) = 9

Second option: 10 - 5 + 4 = 5 + 4 = 9

Hope this help you:3

6 0
3 years ago
Anika is hiking on a rectangular trail at the national park. There are four resting spots along the corners of the trail. On the
tia_tia [17]
The perimeter is 10 try to draw these points on the graph and count the distance between each or you can just look at the coordinates and find the distance and then add length and width
4 0
3 years ago
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