MATHEMATICS MIDDLE SCHOOL

0.07 is 1/10 of what

Answers

Answer 1
Answer: 1/10 of x=0.07
0.1x=0.07
x=(0.07)/(0.1)
x=0.7
Answer 2
Answer: 70 seven times ten is 70

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Solve for x: 3(x + 1) = 2(x - 1)-5-4-2-1

Rewrite the expression in the form 5^n

(5^-8) (5^-10)

Answers

Step-by-step explanation:

This problem is all about bases and exponents.  Because we have a quotient and the bases are both 5's, that means that we can use the rule of exponents for quotients to rewrite and simplify:

That's the simplification as long as you are "allowed" to leave the exponent as a negative number.

Is line L parallel to line M? Explain.Yes, alternate interior angles are congruent.
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Attachment

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Where Is The Picture ?

a pedestal in a craft store is in the shape of a triangular prism. The bases are right triangles with side lengths of 12 centimeters, 16 centimeters, and 20 centimeters. The store owner wraps a piece of rectangular cloth around the pedestal, but does not cover the identical bases of the pedestal with cloth. The area of the cloth is 192 square centimeters. What is the distance around the base of the pedestal? how do you know? What is the height of the pedestal? how did you find your answer?

Answers

You found your area wrong as soon as you gt 192 you multiply by 0.50 getting 96 then you divide by 20 to get 4.8 centimeters

Mamma McGurkin is planning Thanksgiving dinner. The number of pounds of turkey she will buy depends on the number of people she invites to dinner. # of people invited: 12;20 pounds of turkey: 9;15

Answers

I don't know what 12;20 or 9;15 is but if it's 1220 and 915 it would be
y = x / 0.75
Happy to Help!

At a school fair 70% of the people are under 16 years old. One-third of the people remaning are teachers. If there are 21 teachers at the fair, how many people are there at the fair total

Answers

Let's write out what we do know...

70% of the people are under 16 years old

From this information, we can infer that 30% of the people are 16 or older.

100%-70%=30%

1/3 of the people 16 or older are teachers. There are 21 teachers.

1/3 of 30% is 10%

1/3*.30=.10 or 10%

So 21 is 10% the total number of people at the fair.

(10)/(100)= (21)/(x) 2100=10x 210=x

(I cross multiplied and then divided both sides by 10 to get x=210)

There are 210 people at the fair.
30% remains
a third of 30% is 10%
so 10% are teachers
21 (amount of teachers) × 10 = 210
answer = 210

Simplify using mental math 7 / 10 + 2 / 5 - 1 / 10

Answers

common denominator first. multiply 2/5 by 2 in the top and bottom so they all have a denominator of 10

7/10+4/10-1/10=10/10

10/10=1
Assuming mental math still follows the order of operations, you have
(7)/(10) + (4)/(10) - (1)/(10) = (10)/(10) = 1

So the answer is 1.
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