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2 years ago

Which expression is equivalent to 11c-4c? A. 5c+2c B. 3c+7c

Mathematics

1 answer:

timurjin [86]2 years ago

4 0

11c-4c = 7c
5c+2c= 7c
3c+7c= 10c

11c-4c= 5c+2c =A

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Simplify 4n5 + 3.5n5 + (-2.1n5). 4.4 n5 5.4 n5 20 n5 6.4 n5

ella [17]

Answer:

$4 {n}^{5} + 3.5 {n}^{5} + ( - 2.1 {n}^{5} )$

first create a bracket:

$= ( {4n}^{5} + 3.5 {n}^{5} ) + ( - 2.1 {n}^{5} )$

then solve the first bracket:

$= {7.5 {n}^{5} } + ( - 2.1 {n}^{5} )$

then open the remaining bracket:

$= {7.5n}^{5} - {2.1n}^{5}$

carryout the subtraction operation:

$= (7.5 - 2.1) {n}^{5} \\ { \boxed{ = {5.4n}^{5} }}$

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2 years ago

I have 6.5 yards of fabric and if the fabric costs $3.99 per yard how much will I spend

Masteriza [31]

Answer: You will spend 25.94$

Step-by-step explanation:

6.5 yards by 3.99 per yard = 6.5 times 3.99 = 25.935 witch rounds too 25.94$

4 0

2 years ago

Read 2 more answers

Max, a carpet installer, needs to calculate the amount of carpet needed to cover a floor that’s 3 1⁄2 yards wide and 4 3⁄4 yards

AlekseyPX

Answer:

13 1/2

Step-by-step explanation:

Just multiply 3.5 and 4.75

AKA

3 1/2 and 4 3/4

Change 1/2 into 2/4 so the denominators are the same

Multiply the numerators 2 and 3, you now have 6/4

3 × 4 = 12

6/4 is improper so, you need to simplify

now you have 1 1/2

Now 12 + 1 1/2 = 13 1/12

5 0

2 years ago

If the ratio of blue marbles to red is 9:4 what is possible number of blue and red marbles in the jar

LuckyWell [14K]

Answer:

Step-by-step explanation:

13 right? all ya gotta do is add em together right?

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2 years ago

Solving special systems {y=1/2x+4 {-1/2x+y=-5

ryzh [129]

Answer:

no solution

Step-by-step explanation:

Given the 2 equations

y = $\frac{1}{2}$ x + 4 → (1)

- $\frac{1}{2}$ x + y = - 5 → (2)

Substitute y = $\frac{1}{2}$ x + 4 into (2)

- $\frac{1}{2}$ x + $\frac{1}{2}$ x + 4 = - 5 , that is

4 = - 5 ← not possible

This indicates the system has no solution

7 0

2 years ago