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Yakvenalex [24]

3 years ago

6

Please answer! Correct answers get brainiest.

2 answers:

cestrela7 [59]3 years ago

8 0

7/5y —> y+2/5y
0.68y —> y-0.32y
3/5y —> y-2/5y
1.32y —> y+0.32y

egoroff_w [7]3 years ago

7 0

Answer:

7/5 y --> y+ 2/5y

0.68y --> y - 0.32y

3/5y --> y - 2/5y

1.32y --> y+ 0.32y

Step-by-step explanation:

Pretend there is a 1 in front of each y that doesn't have a number (coefficient) in front of it. 1 = 5/5, and then just solve for the fraction expressions.

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Solve the proportion ASAP help do both questions

Strike441 [17]

Answer:

7. 4

8. 7

Step-by-step explanation:

7. $\frac{1}{2} = \frac{x}{8}$

Cross multiply

$1*8 = x*2$

$8 = 2x$

$\frac{8}{2} = \frac{2x}{2}$ (division property of equality)

$4 = x$

$x = 4$

8. $\frac{3}{x - 3} = \frac{6}{8}$

Cross multiply

$3*8 = 6(x - 3)$

$24 = 6x - 18$

$24 + 18 = 6x$ (addition property of equality)

$42 = 6x$

Divide both sides by 6

$7 = x$

$x = 7$

6 0

3 years ago

A roped-off area of width x is created around a 30- by 10-foot rectangular museum display of Native American artifacts. The comb

Monica [59]

Answer: $4x^{2}+80x-500=0$

Step-by-step explanation:

1. You know that:

- The roped-off area whose width is represented with <em>x,</em> it is created around a rectangular museum.

- The dimensions of the rectangular museum are: 30 ft by 10 ft.

- The combined area of the display and the roped-off area is 800 ft².

2. The area of the rectangular museum can be calculated with:

$A=l*w$

Where $l$ is the lenght and $w$ is the width.

You have that the lenght and the width in feet are:

$l=30\\w=10$

3. Let's call $x$ the width of the roped-off area. Then, the combined area is:

$A_c=l_c*w_c$

Where

$A_c=800$

$l_c=l+x+x=30+2x$

$w_c=w+x+x=10+2x$

4. Substitute values and simplify. Then:

$800=(30+2x)(10+2x)$

$800=300+60x+20x+4x^{2}\\4x^{2}+80x-500=0$

5 0

3 years ago

Savanna has 5 dogs and feed them 6 oz of dog food each day, how many pounds of dog food do they eat each day

oksian1 [2.3K]

Answer:

30 oz of dog food

Step-by-step explanation:

you want to multiply the number 6 over the number of dogs there are and there are 5 so that is 5•6 which =30

6 0

3 years ago

What is the area of this figure?<br><br> _______ square kilometers

Nimfa-mama [501]

Answer:

90 square kilometers

Step-by-step explanation:

1. split the figure in small definite sections

2. find the areas of the smaller sections.

3. find the sum of the areas.

3 0

2 years ago

Read 2 more answers

The ratio of marbles to stones is 5 to 7 if there are 35 marbles how many stones is there?

icang [17]

5 : 7
Marbles : Stones

35/5 = 7
So stones
= 7 * 7
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=35 : 49

3 0

3 years ago

Read 2 more answers