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3 years ago

Someone pls help this is due in a bit

Mathematics

1 answer:

zhuklara [117]3 years ago

7 0

The answer is 3.814 but if you wanna round to the nearest hundredth then it’s 3.81

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Solution of the equation 3x/5+1=4x/15+7

Anika [276]

Answer:

x = 18

Step-by-step explanation:

Given

$\frac{3x}{5}$ + 1 = $\frac{4x}{15}$ + 7 ( subtract 1 from both sides )

$\frac{3x}{5}$ = $\frac{4x}{15}$ + 6

Multiply through by 15 to clear the fractions

9x = 4x + 90 ( subtract 4x from both sides )

5x = 90 ( divide both sides by 5 )

x = 18

4 0

3 years ago

Solve both by elimination can someone help? 2x-5y=-9 , 4x+5y=12 3x-2y=12 , 7x-5y=17

lyudmila [28]

Answer:

x=1/2, y=2;

Step-by-step explanation:

First pair:

2x-5y =-9

4x+5y=12

Add them together:

6x=3

x = 1/2

2(1/2) - 5y =-9

1-5y = -9

1+9=5y

y=10/5=2

8 0

2 years ago

There are two less nickels than dimes, and as many quarters, as nickels and dimes together. The total amount of money is $5.25.

katen-ka-za [31]

N=d-2
q=n+d =>q=(d-2)=q=2d-2
25q+5n+10d=525
replace q and n with d
25(2d-2) +5(d-2)+10d=525
50d-50+5d-10+10d=525
65d=585
d=9
n=7
q=16

3 0

3 years ago

Write an equation in slope-intercept form that passes through (2, -3) and slope of -5.

Ksivusya [100]

Step-by-step explanation:

Hey there!

The given slope is "-5" and it passes through point (2,-3).

Use one-point formula to find out the equation.

$(y - y1) = m(x - x1)$

Put all values.

$(y + 3) = - 5(x - 2)$

Simplify it.

$(y + 3) = - 5x + 10$

$y = - 5x + 10 - 3$

$y = - 5x + 7$

Therefore, the equation is y= -5x+7.

Hope it helps...

8 0

3 years ago

The figure below shows a large block of cheese. Cheese Block 10 inches 4 inches 6 inches What is the volume of the block of chee

Masja [62]

Answer:120 cubic inches

Step-by-step explanation:

(4*10)*6 (40*6)/2 240/2=120 cubic inches

8 0

3 years ago