2 years ago

Please help me with 20 and 21 pleas

Mathematics

1 answer:

navik [9.2K]2 years ago

7 0

Answer:

Step-by-step explanation:

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Anne and Nancy use a metal alloy that is 20% copper to make jewelry. How many ounces of a 14% and 24% alloy must be mixed to for

Gala2k [10]

<span>copper +copper = copper
0.14x+0.24(100-x) = 0.20*100 = 20</span>

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3 years ago

Your car invoice reads: “Price $1,492.50, dealer preparation $45.00, transportation $54.50, undercoat $148.80, 60-day guarantee

Maurinko [17]

Answer:$2,074.53

Step-by-step explanation:

Final cost will be calculated as the sum of each expense stated on the invoice, which is $1,492.50 + $45 + $54.50+ $148.80 + $95 + $238.73 = $2,074.53

Final cost = $2,074.53, i hope this helps, please mark as brainliest answer.

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2 years ago

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Mumz [18]

Answer:wheres the diagram?

Step-by-step explanation:

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3 years ago

Plees 555+555 and 6 541,5-5 410,6

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3 years ago

Write the equation of the line shown

Vanyuwa [196]

Answer:

y = $\frac{1}{2}$ x + 1

Step-by-step explanation:

the equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

calculate m using the slope formula

m = $\frac{y_{2}-y_{1} }{x_{2}-x_{1} }$

with (x₁, y₁ ) = (- 2, 0) and (x₂, y₂ ) = (0, 1) ← 2 points on the line

m = $\frac{1-0}{0-(-2)}$ = $\frac{1}{0+2}$ = $\frac{1}{2}$

the line crosses the y- axis at (0, 1 ) ⇒ c = 1

y = $\frac{1}{2}$ x + 1 ← equation of line

3 0

1 year ago

Read 2 more answers