$\dfrac{5}{9}-\boxed{\dfrac{?}{?}}=\dfrac{12}{54}\\\\\\\dfrac{5}{9}\bigg(\dfrac{6}{6}\bigg)-\boxed{\dfrac{?}{?}}=\dfrac{12}{54}\\\\\\\dfrac{30}{54}-\boxed{\dfrac{?}{?}}=\dfrac{12}{54}\\\\\\\dfrac{30}{54}-\boxed{\dfrac{18}{54}}=\dfrac{12}{54}\\\\\\\text{Simplify}\quad \dfrac{18}{54}\div \dfrac{18}{18}\quad =\large\boxed{\dfrac{1}{3}}$

6 0

3 years ago

rectangle with the dimension: width (6b-2)in and length (4a+3)in. if a=.75 and b=.50, what is the perimeter of the rectangle?

Greeley [361]

4(.75) + 3
3 + 3
6
-------------------
6(.50) - 2
3 - 2
1

P = 2 (l + w)
P = 2(6 + 1)
P = 2 x 7
P = 14

6 0

3 years ago

21) Bob ran the first part of a 12 km race at a speed of 8 kmph. He ran the second part of the

diamong [38]

Answer:

Step-by-step explanation:

Bob ran the first part of a 12 km race at a speed of 8 kmph. He ran the second part of the

race at 10 kmph. If his total time for the entire race was 1.74 hours, how far did he run in

the first part of the race?

First part :

Total Distance = 12 km

First part Speed = 8kmph

Let distance covered on first part = x

Second part speed = 10kmhr

(8*x)

6 0

3 years ago

We want to build a swimming pool that is 2m by 6m. On our page it measured out to be 8cm by 24cm. What is tge scale that can be

makkiz [27]

Answer:

1:25

Step-by-step explanation:

Given

Dimensions of swimming pool:

W = 2 m
L = 6 m

Dimensions on paper:

w = 8 cm
l = 24 cm

Scale is the ratio of same measurements:

w/W = 8 cm/2 m = 8 cm / 200 cm = 1/25

So the scale is 1:25

7 0

2 years ago