All categories

2 years ago

Helpppppp Plz! I would greatly appreciate this!

Mathematics

1 answer:

denis-greek [22]2 years ago

6 0

Answer:

you are right it is 9

Step-by-step explanation:

5 x 3 = 15 so you go 3 x 3 which = 9 :)

You might be interested in

What is the surface area of this shape?

never [62]

Answer:

138.3

Step-by-step explanation:

6 0

3 years ago

Jane and sali cycled along the same 63 km route.

Alina [70]

Answer:

Sali's speed was 18.75 km/h.

Step-by-step explanation:

Jane took 3.5 hours to cycle the 63 km.

As, $Speed= \frac{Distance}{Time}$ , so the speed of Jane will be: $\frac{63}{3.5} km/h = 18 km/h$

Suppose, the speed of Sali is $x$ km/h

Sali caught up with Jane when they had both cycled 30 km.

So, the time required for Jane to cycle 30 km $= \frac{30}{18}=\frac{5}{3} hours$ and the time required for Sali to cycle 30 km $=\frac{30}{x} hours$

Given that, Sali started to cycle 4 minutes or $(\frac{4}{60}) or (\frac{1}{15}) hours$ after Jane started to cycle. So, the equation will be.......

$\frac{5}{3}-\frac{30}{x}= \frac{1}{15}\\ \\ \frac{30}{x}= \frac{5}{3}-\frac{1}{15}\\ \\ \frac{30}{x}= \frac{24}{15}\\ \\ 24x=450\\ \\ x= \frac{450}{24}= 18.75$

Thus, the speed of Sali was 18.75 km/h.

8 0

2 years ago

So this is for my geometry I'm trying to work on my review and I'm hoping that maybe one of you guys out here could help me with

alukav5142 [94]

Sorry it’s not that neat but I think the answer would be in the exact surd form root 233

7 0

2 years ago

How many triangles can be made from the following three lengths: 3.1 centimeters, 9.8 centimeters, and 5.2 centimeters?

GenaCL600 [577]

Answer:

none

Step-by-step explanation:

We have three sides

Adding the two smallest sides together must be bigger than the third side

3.1+5.2 > 9.8

8.3> 9.8

This is false, so we cannot make a triangle

6 0

2 years ago

If f of x equals 3x plus 2, find f of 4

Juli2301 [7.4K]

Answer:

f(4) = 14

Step-by-step explanation:

f(x) = 3x+2

Let x=4

f(4) = 3(4)+2

= 12+2

= 14

4 0

3 years ago