MATHEMATICS MIDDLE SCHOOL

What’s the answer for this??

Answers

Answer 1

Answer:

Answer:

D. $(BX)/(AC) = (CD)/(CE)$

Step-by-step explanation:

Following the rules of basic geometry.

Answer 2

Answer:

Answer:

I would say D

Hope This Helps! Have A Nice Afternoon!!

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A set of house plans is made in the ratio 25 : 1. If a room is 5 m long, how long is this room on the plan?

Answers

Answer:

0.2 on the plan

Step-by-step explanation:

The unit is not given, so whatever the unit is will follow. I'm going to say that it is in meters.

25 meters in real life=1 inch (just a guess) on the plan.

25÷5 (the room length given) = 5

1÷5=0.2

You divide them both by the same number so your ratio can have the same rate. Hope this helps.

Rewrite the expression by factoring out the GCF 36y to the second power + 54y Thanks a billion Brainly students !!! :D

Answers

$36y^2+54y=18y\cdot2y+18y\cdot3=18y(2y+3)$

Add or subtract mentally 16.9+ 12.1

Answers

Well, just add or subtract it form the back and work your way to the front, and you have to remember what the digit was.

16.9 + 12.1 = 29
16.9 - 12.1 = 4.8

When you add it mentally you'd get 29
When you subtract it mentally you'd get 4.8

Anita works for a dog-walking service. She earns a one-time fee of $10 plus an additional $2 for each dog she walks. If Anita wants to earn at least $40, what is the minimum number of dogs she must walk?

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40=10+2x where x is the number of dogs.
30=2x
x=15
Therefore she must walk 15 dogs

Hope this helps :)

How do I write a word problem for 1.75 ÷ .5

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A teacher had earned $1.75 for her/his class. Half of the class wanted the money. How much money would each student from half the class get, equally?

$1.75:0.5= (1.75\cdot2)/(0.5\cdot2) = (3.5)/(1) =3.5$

If d = 8, what is the value of the expression 4+d/2 ?

Answers

Question: If d=8, what is the value of the expression $4+\frac{d}2$ ?

Just substitute in 8 for d and evaluate.

$4+\fracd2=4+\frac82=4+4=\boxed8$

If the question was instead d=8 for the expression $\frac{4+d}2$ , your answer would look like this:

$\frac{4+d}2=\frac{4+8}2=\frac{12}2=\boxed6$

First put your numbers in the right places. 4+8/2. Do your steps of P-E-M-D-A-S. There are no parentheses. There are no exponents either. There is not a multiplication problem. but there is a division problem= 8/2. So 8 divided by 2 is 4. The equation looks like this now: 4+4. Add them together and get 8. You don't have anything to subtract. Your answer will be 8.