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3 years ago

Solve the literal equation Solve ax-y/b = c for y

Mathematics

1 answer:

Svetllana [295]3 years ago

4 0

Wait how would you even do this?

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Create a proportion using the form = to represent the following word problem.

Anna11 [10]

Answer :
x = 53.85

Step by step explanation:
If 78% of x (some numbers) is equal to 42, then we must set this as an equation to find it.

1) Rewriting 78% as a fraction and considering that when we say 78% of some number (x) we mean a product.
78% = 78/100 ➡️ 78/100x = 42

2) Then we can go on :
100 * 78/100x = 42 * 100
78x = 4200
78x/78 = 4200/78 ➡️ x = 53.85

3) Alternatively, simply dividing 42 by 0.78 (78%) would come to the same result :

42/0.78 = 53.85

4 0

3 years ago

Read 2 more answers

Random digits 0,1,2,3,4,5,6,7,8,9. what is the probability that a multiple of 4 is picked?

Anton [14]

$|\Omega|=10\\|A|=3\\\\P(A)=\dfrac{3}{10}=30\%$

4 0

3 years ago

Solve the quadratic. x^2+8x+3=0

Reil [10]

Factor
find wht 2 numbers add to 8 and multiply to 3
none do

use quadratic formula which can be used when
ax^2+bx+c=0
x= $\frac{-b+/- \sqrt{b^{2}}-4ac }{2a}$

a=1
b=8
c=3

x= $\frac{-8+/- \sqrt{8^{2}-4(1)(3)} }{2(1)}$
x= $\frac{ -8+/- \sqrt{64-12} }{2}$
x= $\frac{ -8+/- \sqrt{52} }{2}$
x= $\frac{ -8+/- 2 \sqrt{13} }{2}$
x= $-4+/- \sqrt{13}$

x= $-4+ \sqrt{13}$ or x= $-4- \sqrt{13}$
aprox x=-7.60555 or x=-0.394449

6 0

3 years ago

Read 2 more answers

Please have an explanation with it

Nataly_w [17]

Hello from MrBillDoesMath!

Answer:

The protein/calories ratios are equivalent

Discussion:

For the first column

Protein/calories = 24/96 = 1/4

For the second column

Protein/calories = 28/112 = 1/4

So the protein/calories ratios are equivalent

Thank you,

MrB

7 0

3 years ago

Image shows a triangle with sides measuring 4 cm, 4 cm, and 4 cm.

malfutka [58]

Answer:

please mark me brainliest if it helps you

C. equilateral

5 0

3 years ago