quick please combining like terms
1) -8(9k - 4)= 9k + 32

2) 8m + 6m=?

3) -6(2 + 3r)

4) 9 + 3n - 2

5) -5(-7 + 4p)

6) 2c - 5 + 8c

7) 8 + 6z + 3

8) 9p + p

9) 2(-6b + 5)

10) 8 - 3b + 7

Answers

Answer 1

Answer: 1) -8(9k - 4)= 9k + 32
-72k + 32 = 9k + 32
-72k = 9k
-8k = k
0 = k + 8k
0 = 9k
0 = k
k = 0
---------

2) 8m + 6m
14m
---------

3) -6(2 + 3r)
-12 - 18r
----------

4) 9 + 3n - 2
3n + 7
----------

5) -5(-7 + 4p)
-5(4p - 7)
-20p + 35
----------

6) 2c - 5 + 8c
(2c + 8c) - 5
10c - 5
-----------

7) 8 + 6z + 3
6z + 11
-----------

8) 9p + p
10p
-----------

9) 2(-6b + 5)
2 × -6n + 2 × 5
-2 × 6b + 2 × 5
-12b + 2 × 5
-12b + 10
-----------

10) 8 - 3b + 7
-3b + 15

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What is another way to express 3/5 1) 0.22) 0.33) 0.54) 0.6

Write 5 1/4% as a simple fraction.

Answers

so percent means parts out of 100 so
exg
10%=10/100=1/10

so 5 1/4% convert 1/4 to 0.25

5.25%=5.25/100=52.5/1000=525/10000

7^3 times 7^-7 times 7

Answers

Hello there! :)

Answer: $(1)/(343)$

*The answer must have a fraction.*

Step-by-step explanation:

Lesson: Zero and Negative Exponents.

Distributive property: a(b+c)=ab+ac

First, you apply exponent rule.

$a^b*a^c=a^b^+^c$

$7^-^3$

$(1)/(7^3)=7^3=7*7*7=343$

Final answer: $(1)/(343)$

Hope this helps!

Thanks!

-Charlie

Have a great day!

Answer:

The answer is 1/343

Step-by-step explanation:

Ricardo and John start swimming from the same location. Ricardo starts 15 seconds before John and swims at a rate of 3 feet per second. John swims at a rate of 4 feet per second in the same direction as Ricardo. which equation could you solve to find how long it would take John to catch up with Ricardo?A. 4t+3=3t
B. 4t+60=3t
C. 3t+3=4t
D. 3t+45=4t

Answers

speed=distance / time; ⇒distance=speed * time
Distance traveled by Ricardo
Distance (Ricardo)= (3 ft / s) * 15s+3 ft/s * time=45 ft+3 ft/s*t=45+3t

Distance traveled by John:
Distance(John)=(4 ft/s) * time=4t

Distance traveled by Ricardo=Distance traveled by John
3t+45=4t

Answer: D. 3t+45=4t

Add or subtract mentally 8.01+1.09

Answers

The answer is 9.10 (since you put an addition sign.)

Add mentally =9.10
subtract mentally=6.92

Which one is bigger 2/3 or 4/7

Answers

Answer:

$(2)/(3)$

Step-by-step explanation:

To compare the fractions we require them to have a common denominator.

The lowest common multiple of 3 and 7 is 21

Change both fractions into fractions with a denominator of 21

$(2(7))/(3(7))$ and $(4(3))/(7(3))$

= $(14)/(21)$ and $(12)/(21)$

The numerator 14 is greater than 12, hence

$(2)/(3)$ is the larger fraction

Answer:

2/3

Step-by-step explanation:

To find whether a fraction is bigger than the other, we need to make the denominators the same.

First we see what number we can change 3 and 7 into, so it can be made the same.

I chose the number 21 as 21 is in the 3 times tables and the 7 times tables.

Then because I multiplied 3 by 7 to make 21 , I multiply the numerator which is 2 by 7 as well which is 14.

This makes 14/21.

We need to multiply the numerator of the other fraction to because we multiplied the denominator by 3 so we do 4 multiplied by 3, to make 12.

This makes 12/21.

We can see here that 14/21 is greater than 12/21, therefore 2/3 is greater than 4/7.

Your welcome!

How do you find the volume of a cylinder?? Step by step by step

Answers

1). Recall the formula for the volume of a cylinder:

Volume = (pi) x (radius of the round end)² x (length or height) .

2). Gather together the number you'll use for pi, the radius of the
cylinder's round end, and its length or height. Make sure that the
radius of the round end and the length or height are in the same units.
If they're not, then convert something so that they are.

3). Write each number into its place in the formula.

4). Perform the indicated operations. The final number is the
volume of your cylinder.