MATHEMATICS MIDDLE SCHOOL

Simplify 8(3+5)


Help me please

Answers

Answer 1
Answer:

Answer:

64

Step-by-step explanation:

pemdas says parenthesis first

3+5=8

8(8)

8 times 8 equals 64
Answer 2
Answer:

We can add the numbers inside the parenthenses: 8(3+5)=8(8)

Now just multiply and we get 64.

So 64 is the simplified answer

Hope this helped!

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sin Y= ___ in fraction form if you can explain it that would be very helpful

Answers

Check the picture below.

There are 24 counters. How many counters could you add without having to regroup? why?

Answers

Answer: There are 5 counters that can be added without having to regroup.

Step-by-step explanation:

Since we have given that

Number of counters = 24

We need to add without having to regroup.

It means that we should make it a prime number which does not get divided by any other number except 1 and itself.

so, After 24, there is other numbers that has chances are as follows:

25,26,27,28,29......

But except 29 all the other number can be regroup as they are composite numbers.

But 29 is the nearest prime number after 24.

So, 24+5=29.

Hence, there are 5 counters that can be added without having to regroup.
you can add 5 because 24+5= 29 and still being divisible by 5. if you add six you need to regroup 

jon buys packages of pens for $5 each. identify the independent and dependent variables in the situation

Answers

The independent variables is the number of packages and the dependent variable is the price of the pens
The independent variable is the variable that is changed and manipulated, and the dependent variable is the outcome of this change. So the independent variable is the number of packs that Jon buys, and the dependent variable is the overall cost. Additionally, the constant variable is the cost of the pens ($5) because that stays the same.

It is recommended that an adult drink 64 fluid ounces of water every day.Josey has already consumed 700 millitiers of water. How many more liters should he drink today?

Answers

In the given question it is already mentioned that an adult drinks 54 fluid ounces of water daily. Also it is mentioned that Josey has already drank 700 milliliters of water.
Now fopr solving this problem we have to fist convert 64 ounces to liter and then convert 700 milliliter to liter and then only can we get the answer to the question.
We already know
1 ounce = 0.29 liter
64 ounce = 64 * 0.29 liter
               = 18.56 liter
So 18.56 liter is the daily recommendation for an adult to drink water
Again
1 milliliter = 0.001 liter
700 ml = 0.001 * 700 liter
           = 0.7 liter
So Josey has already drank 0.7 liters of water
Amount of water Josey still needs to drink = (18.56 - 0.7) liter
                                                                   = 17.86 liter
33.814 fluid ounces= 1 liter
64 ounces= 64/33.814 liters= 1.89 liters is what she needs daily
1000 milliliters= 1 liter
700 milliliters= 0.7 liters is what she already drank
1.89-0.7= 1.19 liters she still needs to drink

Carl has three lengths of cable,5/6/ yard long,1/4 yard long, and 2/3 yard long.He needs at least 1 yard of cable.A. which two pieces together make a length at least 1 yard and closest to 1 yard?
B. If Carl uses the two short pieces,how much more cable would be need?
C. After Carl has used 1 yard of cable,how much cable will he have left?explain your answer

Answers

Answer:

A- 5/6 and 1/4

B- 1/12

C- 3/4

Step-by-step explanation:

Given : Carl has three lengths of cable,

Cable 1 - (5)/(6) yard long,

Cable 2 - (1)/(4) yard long,

Cable 3 - (2)/(3) yard long

He needs at least 1 yard of cable.

A. Which two pieces together make a length at least 1 yard and closest to 1 yard?

We can form possible piece together

Taking 5/6 and 1/4

(5)/(6) +(1)/(4)= (20+6)/(24)=(26)/(24)=1.08

Taking 1/4 and 2/3

(1)/(4) +(2)/(3)= (3+8)/(12)=(11)/(12)=0.91

Taking 5/6 and 2/3

(5)/(6) +(2)/(3)= (15+12)/(18)=(27)/(18)=1.5

Length at least 1 yard and closest to 1 yard is the 5/6 yard and the 1/4 yard together.

B. If Carl uses the two short pieces,how much more cable would be need?

The two short pieces 1/4 and 2/3 makes 11/12 of a yard,

So, he would need1-(11)/(12)= (12-11)/(12)=(1)/(12) yards more of cable.

C. After Carl has used 1 yard of cable,how much cable will he have left?

Altogether he has  (5)/(6) +(1)/(4)+(2)/(3)=(126)/(72)=1and(3)/(4) yards of cable.

If he took the 1 cable needed, he would then have 3/4 of a yard leftover.
a. the 5/6 yard and the 1/4 yard
b. the two short pieces makes 11/12 of a yard, he would need 1/12 yards more of cable.
c. altogether he has 1 and 3/4 yards of cable. If he took the 1 cable needed, he would then have 3/4 of a yard leftover.

a 13 ft ladder is placed against the side of the building. The bottom of the ladder is 5 ft away from the bottom of the building. how far up the building will the ladder reach?

Answers

The final answer is x=12
So the ladder will reach 12 feet up
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