All categories

3 years ago

Hey mathematicians ! Can anyone help me with these problems please ! Will give brainly !

Mathematics

1 answer:

satela [25.4K]3 years ago

7 0

Answer:

77) YES , 78) YES , 79) NO , 80) YES

Step-by-step explanation:

77) 12/4=3 and 18/6=3 so YES

78) 30/6=5 and 40/8=5 so YES

79) 36/25=1.44 and 48/40=1.2 so NO

80) 15/5=3 and 13.8/4.6=3 so YES

You might be interested in

Mr.Swanson bought a package of 10 disposable razors for $6.30. He found that each razor lasted for 1 week. What was the cost per

Blababa [14]

Answer:

9 cents per day

Step-by-step explanation:

1 week = 7 days

Each razor lasts 1 week = 7 days

10 razors last 10 weeks = 10 * 7 days = 70 days

cost per day = (total cost)/(number of days)

cost per day = $6.30/(70 days) = $0.09/day

4 0

3 years ago

Graph the equation to solve the system. y=2x+7 1/2y=x+7/2

vlabodo [156]

Given equation is y=2x+7 and $\frac{1}{2}y=x+\frac{7}{2}$

Let's simplify the 2nd equation $\frac{1}{2}y=x+\frac{7}{2}$ before we can start graph so that calculation will be easy

$\frac{1}{2}y=x+\frac{7}{2}$

multiply both sides by 2 to cancel out fractions

$2*\frac{1}{2}y=2*x+2*\frac{7}{2}$

y=2x+7

which is exactly same as the first equatoin so graph of both will be exactly same and solution will be infinitely many solutions.

y=2x+7 has y-intercept 7 so first point will be (0,7). Slope is 2 so rise 2 unit up then 1 right and graph the new point.

3 0

3 years ago

The area of a rectangle is length × width. What is the length of a rectangular pool table that has a width of 5and 1 third feet

Drupady [299]

5 1/3 x 50 2/3=270.2

5 0

3 years ago

Help please! a= 2 b= -4 c= -3 d= 5 help and explain how to do it pleaseee

slava [35]

(2+-4)--3
(2-4)+3
(-2)+3
1

(-4-2)+-3
(-6)-3
-9

5 0

3 years ago

Can someone help me please

irga5000 [103]

Answer:

See below.

Step-by-step explanation:

It is the one at the top left side.

The line y = x passes through the origin at an angle of 45 degrees to the x axis and rises to the right.

So if you imagine its a mirror you'll see that its a reflection in that mirror.

5 0

3 years ago