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2 years ago

Translate the following written expression into an algebraic expression:

Mathematics

1 answer:

hammer [34]2 years ago

8 0

Answer:

(y-5) ÷ 2

Step-by-step explanation:

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A painter charges by the square foot and charges you $1,875 to paint a 750 square foot rental house. If you need 1300 square foo

Stella [2.4K]

In this question , it is given that

A painter charges by the square foot and charges you $1,875 to paint a 750 square foot rental house.

For 750 square foot, he charges $1875.

So for 1 square foot, he charges

$= \frac{1875}{750} = $2.50 \ \per \ square \ foot$

And for 1300 square foot, he charges

$= 2.50*1300 = $3250$

3 0

3 years ago

A recipe calls for 3 3/4 cups of flour and Jen put 2 1/3 in a bowl already how much more flour does she need

erma4kov [3.2K]

Answer:

1 5/15

Step-by-step explanation:

3 0

3 years ago

Last week, a chocolate shop sold 7/12 pounds of white chocolate. It sold 2 1/5 times as much milk chocolate as white chocolate.

Maslowich

Answer:

Step-by-step explanation:

i fell like it is 5 pounds I hope this is right..

6 0

3 years ago

Please help!!

Inessa05 [86]

Let the width = w.
The length is 6 times the width, so the length is 6w.
The perimeter is 70.
P = 2L + 2W

70 = 2(6w) + 2(w)

70 = 12w + 4w

70 = 14w

5 = w

The width is 5.
The length is 6 times the width, so the length is 6 * 5 = 30

Area of rectangle = LW

A = 5 * 30 = 150

8 0

3 years ago

Elimination method: ax+by=r, -bx+cy=s

Alex17521 [72]

$\left[\begin{array}{ccc}ax+by=r\\\\-bx+cy=s\end{array}\right]$

Isolate x for $ax+by=r$

$x= \frac{r-by}{a} ; a \neq 0$

Subsititute $x= \frac{r-by}{a}$

$-b \frac{r-by}{a} +cy=s$

Isolate r for : $-b \frac{r-by}{a}+cy=s$

$r=- \frac{as-acy-b^2y}{b} ; a \neq 0;b \neq 0$

For x : $\frac{r-by}{a}$

Subsititute r = $- \frac{as-acy-b^2y}{b}$

$x= -\frac{as-acy-b^2y}{b}/a$

$x = \frac{cy-s}{b}$

The solutions to the system of equations are:

$r= -\frac{as-acy-b^2y}{b}$ and <span> $x = \frac{cy-s}{b}$
</span>
hope this helps!

3 0

2 years ago