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3 years ago

11. The rates for the following math tutoring services are listed below.

Mathematics

2 answers:

fomenos3 years ago

7 0

Answer: A

Step-by-step explanation:

A) 50/ 45 = 1.111....

B) 65/60 = 1.08333...

C) 99/90 = 1.1

D) 90/120 = .75

Reptile [31]3 years ago

3 0

Answer:

Step-by-step explanation:

Divide each amount by the number of minutes to find the rate per minute. Then multiply by 60 to find the hourly rate. Then compare the hourly rates.

$50 / 45 min * 60 = $66.66/hour

$65 / 1 hour = $65/hour

$99 / 90 min * 60 = $66/hour

$90 / 2 hours = $45/hour

Answer: A

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6. Tony is going to buy a new bike. The bike costs $120.50. If Tony uses a 25% coupon how much will he

Kruka [31]

Answer:

$90.38

Step-by-step explanation:

25% of $120.50 is $30.125

$120.50 - $30.125 = $90.375 rounded to $90.38

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3 years ago

When building a roof, carpenters put vertical boards every 2 feet along the horizontal baseline. The height of the boards, y, fo

Tanzania [10]

Answer:

10 feet

Step-by-step explanation:

define variables:

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3 years ago

A scientist had 3 1/2 liters of vinegar. He poured 2/3 of the vinegar into beaker. He then used 3/5 of the vinegar in the beaker

valentinak56 [21]

Answer:

A)2100 ml

Step-by-step explanation:

Given total vinegar is 3 1/2 liters and the used vinegar is 3/5 of the vinegar in the beaker:

#First calculate the amount of vinegar not poured in the beaker:

$V_o=V_t-V_b\\\\=3\frac{1}{2}(1-\frac{2}{3})\\\\=1\frac{1}{6}$

#Calculate amount of vinegar used in experiment:

$V_b=\frac{2}{3}V_t=\frac{2}{3}(3\frac{1}{2})=2\frac{1}{3}\\\\V_u=\frac{3}{5}V_b=\frac{3}{5}\times 2\frac{1}{3}=1\frac{2}{5}$

#The unused vinegar is therefore calculated by subtracting the used vinegar from the total at the start of the experiment:

$V_r=V_t-V_u\\\\=3\frac{1}{2}-1\frac{2}5}\\\\=2\frac{1}{10}\times 1000\ ml\\\\=2100\ ml$

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3 years ago

Help !!!! Please number 1

Rudiy27

Answer:

Step-by-step explanation:

you have a special triangle 30-60-90

the ration in this traingle is x, x $\sqrt{3}$ , 2x, where 2x is the hypothenuse

the hypothenuse is 12

x=12/2=6

the other leg is 6 $\sqrt{3}$ =10.39

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3 years ago

Which expression has the smallest value?<br> A. |15|<br> B. |-24|<br> C. |-31|<br> D. |42|

Dennis_Churaev [7]

-31 Because it is a negative number
Explaination I’m smart Thank me cause I’m right

6 0

3 years ago

Read 2 more answers