4 years ago

Is 20/9

Mathematics

1 answer:

Nadya [2.5K]4 years ago

6 0

I think it is D i did it

You might be interested in

Nine more than the quotient of a number and 4 is 12

Fudgin [204]

To solve this, let's first convert the equation to standard form:

9 + (x/4) = 12

Now, let's solve for x:

9 + (x/4) = 12
9 + (x/4) - 9 = 12 - 9
x/4 = 3
x/4 * 4 = 3 * 4
x = 12

8 0

3 years ago

Jan walks 2 miles at a constant rate of 3 miles per hour and then runs 1 mile at a constant rate of 8 miles per hour.

stealth61 [152]

Answer:

(a).4.36 mph

(b) No

Step-by-step explanation:

We are given that

Jan covered distance,s1 =2 miles

Speed of Jan, a=3 mph

s2=1 mile

b=8mph

We have to find the Jan' s average speed for the entire trip.

Average speed = $\frac{2ab}{a+b}$

Using the formula

Average speed= $\frac{2(3)(8)}{3+8}=4.36mph$

Average speed with two speed

Average of Jan’s two speeds

$=\frac{a+b}{2}$

= $\frac{3+8}{2}=5.5 mph$

$4.36\neq 5.5$

Hence, the average speed in part (a) is not equal to the average of Jan’s two speeds.

5 0

3 years ago

a coin is tossed and an eight sided die numbered 1 through 8 is rolled. find the probability of tossing a head and then rolling

choli [55]

50%Answer:

Step-by-step explanation:

3 0

3 years ago

Find the measure of Angle B

ValentinkaMS [17]

Answer: 60

Step-by-step explanation:

Because it is to small to be a 90 or a 120 and a little to big to be a 45 so that will leave 60

6 0

3 years ago

What is 615×351 and how do i do it

netineya [11]

You can use many methods but the way I do it is just multiply it out and you get 215,865

7 0

3 years ago