All categories

3 years ago

I think of a number add 3 to it and multiply the result by 7.

Mathematics

2 answers:

kiruha [24]3 years ago

8 0

Answer:

x+3(7)=the answer

21=x

Step-by-step explanation:

ludmilkaskok [199]3 years ago

6 0

Let x be the number you choose. Then add 3 to this number.

You have x + 3.

Now multiply 7 to this.

So you should have 7(x+3) as your algebraic expression.

You might be interested in

7. ***HINT: MEAN = AVERAGE *

Korolek [52]

The mean is 4.9 miles per day

3 0

3 years ago

Please help with 16 and 17 those are hard

notka56 [123]

The answer to number 17 is c

6 0

3 years ago

What is the value of x? What is the value of x?

Otrada [13]

23. because there is a 90 degree angle and then the 67 degree angle, and triangle law says that all angles add up to 180.

5 0

3 years ago

Read 2 more answers

5. A blue whale calf swam from Miami, Florida, to Havana, Cuba, a distance of 228 miles, in 12

kow [346]

The average speed is 97346 feet per hour approximately

Solution:

Given that blue whale calf swam from Miami, Florida, to Havana, Cuba, a distance of 228 miles, in 12 hours 22 minutes

To find: average rate of speed in feet per hour

The speed is given by formula:

$speed = \frac{distance}{time}$

From given information,

$distance = 228 \text{ miles }$

$time = 12 \text { hours } 22 \text{ minutes }$

We know that,

$1 \text{ minute } = \frac{1}{60} \text{ hour}$

Therefore,

$12 \text { hours } 22 \text{ minutes } = 12 + \frac{22}{60} \text{ hour } = 12.3667 \text{ hour }$

Substituting the values in above formula,

$\text { speed }=\frac{228}{12.3667}=18.4366$

Thus average speed is 18.4366 miles per hour

Let us convert to feet per hour

We know that,

1 mile = 5280 feet

Therefore,

18.4366 miles = 18.4366 x 5280 feet = 97345.248 feet

Thus average speed is 97346 feet per hour approximately

6 0

3 years ago

Sarah sells 5 newspapers for $15 what is the unit rate for 1 newspaper

amm1812

Answer:

1 newspaper is 3 dollars

Step-by-step explanation:

the ratio 5:15 is equivalent to 1:3

3 0

3 years ago

Read 2 more answers