3 years ago

The value of y varies directly with x. when y = 7.5, x = 5. what is the value of y when x = 80?.

Mathematics

1 answer:

Ksenya-84 [330]3 years ago

4 0

Answer:

Step-by-step explanation:

120 = y. the ratio is 3:2

80/2 is 40

40 times 3 is 120

120:80 = 3:2

You might be interested in

Use long division to find the quotient below.<br> (x2 + 3x - 18) + (x-3)

Vanyuwa [196]

Answer:

6x-21

Step-by-step explanation:

6 0

3 years ago

PLEASE HELP ME ASAP

goblinko [34]

Answer:

20.04 units

Step-by-step explanation:

The diagram shows right triangle ABC. Use the definition of the cosine:

$\cos \angle C=\dfrac{\text{Adjacent leg}}{\text{Hypotenuse}}\\ \\\cos \angle C=\dfrac{BC}{AC}\\ \\\cos 51^{\circ}=\dfrac{BC}{27}\\ \\BC=27\cdot \cos 51^{\circ}\\ \\BC\approx 20.04\ units$

3 0

3 years ago

Jackson mows lawns to make money. It costs him $7 each week to advertise his business. It costs him $1.50 in gas to mow each law

ArbitrLikvidat [17]

Say he mows 1 lawn every day, per week. He'd spend a total of $10.50 on gas and $7 for an advertisement for that week. Which would equal his total profit being $52.50 per week is his business.

7 0

3 years ago

Read 2 more answers

Jack types 162 words in 3 minutes. Jack types at a constant rate. How many words does Jack type per minute?

Arte-miy333 [17]

Answer:

Step-by-step explanation:

162/3 = 54

3 0

2 years ago

1.-18(12)<br> 2. -352 + -225

Montano1993 [528]

Answer:

1.-204.5 2.-557

Step-by-step explanation:

8 0

2 years ago