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3 years ago

Terry drove 310 miles in 5 hours at a constant speed. How long would it take him to drive 403 miles at the same speed?

2 answers:

6 0

Well, first, find-out how fast he was going the first time, by dividing 310 by 5. This gives you 62 mph. Now, divide 403 miles by 62 miles per hour in order to find-out how long it would take him to drive 403 miles, if he is constantly doing 62 mph. Your final answer is six-and-a-half hours.

Stells [14]3 years ago

6 0

Terry drove 310 miles in 5 hours

How long would it take him to drive 403 miles at the same speed?

First, you divide 310 by 5 which is 62

Get 403 and divide by 62 which is 6.5

or simply put:

310÷5=62

403÷62=6.5

Answer: It would take Terry 6.5 hours to drive 403 miles

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muminat

Ella has 0.5 lbs of sugar. 75% syrup

Percent of mass = $\frac{mass of solute}{mass of solution} * 100$

Let the mass of solution is x

Given mass of solute = 0.5

percent of mass = 75

75 = $\frac{ 0.5}{x} * 100$

75x = 0.5 * 100

75 x = 50

x = 0.67

Mass of solution = 0.67

Mass of water = mass of solution - mass of solute (sugar)

= 0.67 - 0.5 = 0.17

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4 years ago

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3 years ago

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3x - y = 7 y= 2x +2 What’s the answer

ElenaW [278]

Answer:

y=20,x=9

When doing problems like this it is important to always note: whatever you do to one side of the = sign you have to do to the other side.

Step-by-step explanation:

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3 years ago

Bly makes fleece scarves and sells them for $11 each. The supplies cost her $5 per scarf. Last month, Bly had a profit of $139.

seraphim [82]

Bly sold 29 scarves last month

Solution:

Let "x" be the number of scarves sold

Bly made 7 more scarves than she sold

Then, number of scarves made = x + 7

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Thus for selling "x" scraves , he will get 11x dollars

Total sales revenue = 11x

number of scarves made = x + 7

The supplies cost her $5 per scarf

Therefore, cost for scarves made = 5(x + 7)

Therefore,

profit = Total sales revenue - cost for scarves made

profit = 11x - 5(x + 7)

profit = 11x - 5x - 35

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Last month, Bly had a profit of $139

139 = 6x - 35

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Thus Bly sold 29 scarves last month

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3 years ago

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blondinia [14]

Answer:

B. 8 m/s (meters per second)

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