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3 years ago

Use the two given functions to write y as a function of x y=3m-5, m=x+5/3

Mathematics

1 answer:

Romashka [77]3 years ago

7 0

y=3x

Step-by-step explanation:

y=3x-5

but

m=x+5/3

replace m in 3m to 3(x +5/3)

i.e

y=3(x+5/3)-5

y=3x +5-5

y=3x

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You have an above ground pool that is 20 feet in diameter. One bag of sand does three square feet. How many bags of sand do you

r-ruslan [8.4K]

Answer: Number of sand bags are 105

Step-by-step explanation:

Alright, lets get started.

The diameter of pool is given as : $20 \ \text{feet}$

The radius of pool will be : $r=\frac{20}{2}=10$

So the area of the pool will be:

Area = $\pi r^2$

Area = $\pi *10^2$

Area = $100 \pi$

Area = $314.16$

3 square feet is covered by 1 sand bag, so

314.16 square feet will be covered by : $\frac{314.16}{3}$

So, no of sand bag = $104.7$

Rounding off to nearest number

Number of sand bags are 105 : Answer

Hope it will help :)

8 0

4 years ago

What is 546 divided by 25 in long division

Phantasy [73]

·_21.21
25l546. 25 goes into 54 twice with a remainder of 4
l50↓
-----
l 46 25 goes into 46 once with 21 left
l 25
------
21

8 0

3 years ago

Bart opens a bank account and deposits $10 each week. If he has $90 in his account, how many weeks has he been depositing money?

Komok [63]

Answer:

9 weeks

Step-by-Step Instructions:

Step 1: State what is know

Bart deposits 10 dollars every week

Bart has 90 dollars in his account

Step 2: Find a way to solve for how many weeks Bart ha been depositing money

Total money in account / 10 dollars deposit per week = weeks he has been depositing

Step 3: Substitute in values and solve

90/ 10 = 9

Step 4: State your findings

Therefore Bart has been depositing money for 9 weeks

5 0

3 years ago

Un boligrafo cuesta 30 ptas mas que un lapiz. Un muchacho ha comprado 8 boligrafos y 15 lapices. En total le han costado 700 pta

Firdavs [7]

Por un sistema de ecuaciones, tiene-se que:

Cada lapiz cuesta 20 ptas.
Cada boligrafo cuesta 50 ptas.

-------------------------

Considera-se un sistema de ecuaciones, con cada boligrafo custando x y cada lapiz custando y.

Boligrafo cuesta 30 mas que un lapiz, o sea, $x = 30 + y$
8 boligrafos y 15 lapices cuesta 700, o sea, $8x + 15y = 700$

-------------------------

Aplicando el primer ecuación en la segunda, tiene-se el cuesto de cada lapiz:

$8x + 15y = 700$

$8(30 + y) + 15y = 700$

$240 + 8y + 15y = 700$

$23y = 460$

$y = \frac{460}{23}$

$y = 20$

Cada lapiz cuesta 20 ptas.

-------------------------

Por fin, el cuesto de cada boligrafo es dado por:

$x = 30 + y = 30 + 20 = 50$

Cada boligrafo cuesta 50 ptas.

Un problema similar es dado en brainly.com/question/24637096

4 0

3 years ago

What is 2/9 of 18 the calculations too pls! (Fractions)

adell [148]

Answer:

18/9=2 2*2=4

answer is 4

Step-by-step explanation:

3 0

3 years ago