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vagabundo [1.1K]
3 years ago
7

A car travels 20 1/2 miles in 2/3 of an hour. What is the average speed, in miles per hour, of thr car?

Mathematics
1 answer:
zmey [24]3 years ago
3 0

Answer:

27.33333... mph

Step-by-step explanation:

Find 1/3 of 20 1/2: 1/3*41/2=41/6

That equals 6.83333...

Now add 20 1/2 and 6.83333 = 27.3333...

Therefore, 27.33333... mph

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What is the rational number equivalent to 3.12​
jekas [21]

Answer:

3 4/33

Step-by-step explanation:

3 0
3 years ago
Two investments totallng $47,500 produce an annual income of $3000. One investment ylelds 9% per year, while the other yields 6%
enot [183]

Answer:

The correct answer is "$5000".

Step-by-step explanation:

The given values are:

Two investments totaling,

= $47,500

Annual income,

= $3000

One investment yields per year,

= 9%

Other yield,

= 6%

Let,

  • The amount invested in 9% will be "x".
  • The amount invested in 6% will be "47,500-x".

Now,

⇒  0.09x+0.06(47,500-x)=3000

⇒        0.09x+2850-0.06x=3000

⇒                     0.03x+2850=3000

⇒                                0.03x=150

⇒                                       x=\frac{150}{0.03}

⇒                                       x=5000

5 0
3 years ago
(a) Predict the median income of a region in which 30% of adults 25 years and older have at least a bachelor's degree.
Step2247 [10]

Answer:

(a). $35746. (b). Higher.

Step-by-step explanation:

(a). Given that the least-squares regression equation is y = 7163x + 14242. Also, in the question above we are given that y is the median income and x is the percentage of 25 years and older with at least a bachelor's degree in the region, that is to say that the value of x = 30.

Therefore, y = 7163x + 14242.

y = (7163 × 30) + 14242.

y = $35746.

(b). The condition for our x is; 28.7 percent of adults 25 years and older have at least a bachelor's degree.

Then, y = (7163 × 28.7) + 14242.

y = $34814.

Hence, we have the median income in this region = $38,163 HIGHER than $34814.

4 0
3 years ago
I will give brainliest for the best awnser
hodyreva [135]

I worked it out and I got south Africa

7 0
3 years ago
Read 2 more answers
For a fundraiser , Brad sold 2 less than 3 times the number of candy bars calls that Mary did . If they sold 334 total bars, fin
marysya [2.9K]
x-\ Mary\\
3x-2-\ Brad\\\\
x+3x-2=334\\
4x-2=334\ \ |add\ 2\\
4x=336\ \ | divide\ by\ 4\\x=84\\
3x-2=3*84-2=252-2=250\\\\
Brad\ sold\ 250\ bars\ and\ Mary\ sold\ 84\ bars.
8 0
3 years ago
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