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3 years ago

Fractions help please??

Mathematics

1 answer:

Arturiano [62]3 years ago

4 0

Answer:

3/4

Step-by-step explanation:

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A spinner is divided into eight equal sections. Each section is either blue or yellow. The spinner was fun 40 times. It landed o

Nikolay [14]

10:40 because yellow goes before the total. Or it is 25%

4 0

3 years ago

Read 2 more answers

the height in feet of an object projected upward is given by the polynomial -16t^2+60t+90 where t represents time, in seconds. F

Karolina [17]

Given:

The height of an object project upward is given by the polynomial

$h=-16t^2+60t+90$

where t represents the time, in seconds.

We need to determine the height after t = 2.5 seconds.

Height of an object:

The height of an object after 2.5 seconds can be determined by substituting t=2.5 in the polynomial, we get;

$h=-16(2.5)^2+60(2.5)+90$

Simplifying, we get;

$h=-16(6.25)+60(2.5)+90$

$h=-100+150+90$

$h=140$

Thus, the height of an object is 140 feet.

3 0

3 years ago

Sylvia earns $7 per hour at her after school job. After working one week, she received a paycheck for $91.

makvit [3.9K]

Answer:

a.) $hours=13$

b.) $h\leq 15$

c.) $ $$105$

Step-by-step explanation:

a.) If she earns $7 'per' hour, this multiplication. After a week, we need to see how many hours she worked to earn $91, so this goes behind the equal sign. Let h be the unknown number of hours:

$7h=91$

Solve for h. Divide both sides by 7:

$\frac{7h}{7}=\frac{91}{7}\\\\h=13$

Sylvia worked 13 hours at a rate of $7 an hour.

b.) She can work at most 15 hours a week. At 'most' can also mean less than or equal to. Let h be hours:

$h\leq 15$

Sylvia can work less than or equal to 15 hours per week.

c.) If Sylvia can work 15 hours, plug in this value for h into an equation when she earns $7 per hour. Let the product of the hours and money equal t for total:

$t=7(15)\\t=105$