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Ira Lisetskai [31]
4 years ago
7

Solve the following using Substitution Method. c= 3d - 27 4d + 10c =120

Mathematics
1 answer:
svp [43]4 years ago
8 0

Answer:

d=30-5c/2

Step-by-step explanation:

Move all terms that don't contain d to the right side and solve

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Please help !!!!!!!!!!!plss
goldenfox [79]

Answer:

4

Step-by-step explanation:

replace x with its value to get

8-2y+3y=12 then combine like terms

8+y=12 subtract 8 from both sides

y=4

4 0
3 years ago
Read 2 more answers
What is the side length of a square with a perimeter of 96 meters
zloy xaker [14]

Answer:

24

Step-by-step explanation:

96 divided by 4 = 24

3 0
3 years ago
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A customer deposits $500 in an account that pays 4% annual interest. What is the balance after 3 years if the interest is compou
lana [24]

A(t) = P(1+(r/n))^(nt)

A(3) = 500(1+0.04/1))^(1*3)

A(3) = 500(1.04)^3

A(3) = $562.43
6 0
3 years ago
Read 2 more answers
This question, please!!!
Natasha2012 [34]

Answer:

14.28%

Step-by-step explanation:

I'm not sure if it's right but this is how I worked it out,

the box's contents are 4.2 pounds in total,

therefore in a fraction it would be 6/42

you turn a fraction into a percentage you do the numerator divided by the denominator

6÷42=0.142857(decimal form)

now you just turn it into a percentage

14.28%

please correct me if I'm wrong

4 0
2 years ago
30 POINTS! Quilt squares are cut on the diagonal to form triangular quilt pieces. The hypotenuse of the resulting triangles is 3
Vesna [10]
C^2= a^2 + b^2                  a=b
34^2= a^2 + a^2
1156=2a^2
a^2=1156/2
a^2=578
a=24.04

The side length is 24.04
            Or I got this also
Using the special triangle theorem , an isosceles triangle has a diagonal equal to the square root of 2 of the legs of the triangle. In this case, the length of the legs is 34/ sqrt of 2 or equal to 24.04 units . This rule is based on the Pythagorean theorem
If the length of each side = x.

By Pythagoras' Theorem:

x² + x² = 34²

2x² = 34²

x² = 34² / 2

x² = 578

x = √578

<span>x ≈ 24.04 inches
hope this helps
</span>
3 0
3 years ago
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