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3 years ago

Can someone answer all these for me pls

Mathematics

1 answer:

Tems11 [23]3 years ago

4 0

Okay
1 yes and yes
2 yes and no
3 no and yes

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1. Three pounds of M&M’s cost $7.50. At this rate, what is the cost of 7 pounds?

Romashka [77]

Answer:

1. 17.50

2. 6

Step-by-step explanation:

1A: First you have to divide the cost by the three pounds to get the price per pound. Now that you have that answer you multiply it by 7 to get the price of 7 pounds.

2A: You can buy 6 pounds because if you multiply 7.5 x 6 you get 45 which you cannot add one more 7.50 so that is your final answer.

Hope this helps you ^^

8 0

2 years ago

Given: g∥h and ∠1≅∠5 Prove: ∠5≅∠3

ioda

Answer:

evewifvnwifvnwiejfvniewjfv

Step-by-step explanation:

6 0

3 years ago

You and your friend share a paper route. You can deliver 4 papers in one minute and your friend can deliver 3 papers in one minu

nadezda [96]

Answer:

$n\times \frac{1}{4}+(75-n)\times \frac{1}{3}$

Step-by-step explanation:

Given that:

4 papers are delivered by first person in one minute.

Rate of delivering one paper

Time taken to deliver one paper can be calculated by the formula:

$\dfrac{\text{Total Time taken}}{\text{Number of papers delivered}}$

Time taken to deliver one paper by first person = $\frac{1}{4}$

3 papers are delivered by second person in one minute.

Time taken to deliver one paper by second person = $\frac{1}{3}$

Total number of papers = 75

Number of papers delivered by first person = $n$

So, number of papers delivered by second person = ( $75-n$ )

Time taken to deliver $n$ newspapers = Number of newspapers delivered multiplied by Time taken to deliver one newspaper

Time taken by first person = $n\times \frac{1}{4}$

Time taken by second person = $(75-n)\times \frac{1}{3}$

So, Total time taken can be written as:

$n\times \frac{1}{4}+(75-n)\times \frac{1}{3}$

5 0

3 years ago

5x + 7y = 3 2x + 3y = 1 Solve

lana66690 [7]

Answer: x=2 and y=−1

Step-by-step explanation:

5x+7y=3for x:

5x+7y=3

5x+7y+−7y=3+−7y(Add -7y to both sides)

5x=−7y+3

x= −7/ 5 y+ 3 /5

Substitute −7 /5 y+ 3 /5 for x in2x+3y=1:

2( −7/ 5 y+ 3 /5 )+3y=1

1 /5 y+ 6 /5 =1(Simplify both sides of the equation)

1 /5 y= −1 /5

y=1

Substitute −1 for y in x

−7 /5 y+ 3 /5 : x=

x=2

x=2(Simplify both sides of the equation)

4 0

3 years ago

Are the ratios 3:9 and 21:27 equivalent? Why or why not?

Nastasia [14]

Answer:

Not equivalent

Step-by-step explanation:

Given:

3:9 and 21:27

We see that

21:27= 7:9

Comparing:

3:9 < 7:9

They have same denominator but different numerator, hence they are different

7 0

4 years ago

Read 2 more answers