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Mice21 [21]
3 years ago
10

259 Students go on a field trip. There are 19 vehicles, some vans and some buses.

Mathematics
1 answer:
Svetlanka [38]3 years ago
8 0
7 buses, 12 vans

Explanation:
12 vans, 7 Buses
7 x 25 = 175
12 x 7 = 84

175 + 84 = 259

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There is a blizzard, and Matt notices that the snow is falling at a constant rate. Two hours after the beginning of the snowstor
MaRussiya [10]

Answer:

2 inches per hour, 5 inches, y=2x+5

Step-by-step explanation:

No, I don't think I will

8 0
3 years ago
A truck weighing 150kN and travelling at 2m/sec impacts with a buffer
FrozenT [24]

The maximum compression of the spring is 0.276 m

Step-by-step explanation:

First of all, we calculate the spring  constant of the spring, by using Hooke's law:

F=kx

where

F = 10 kN = 10,000 N is the force applied

x = 1.25 cm = 0.0125 m is the corresponding compression of the spring

k is the spring constant

Solving for k,

k=\frac{F}{x}=\frac{10,000}{0.0125}=8\cdot 10^5 N/m

When the truck impacts with the spring, all the kinetic energy of the truck is converted into elastic potential energy of the spring, so we can write

\frac{1}{2}mv^2=\frac{1}{2}kx^2 (1)

where

m is the mass of the truck

v = 2 m/s is the initial speed of the truck

k=8\cdot 10^5 N/m is the spring constant

x is the compression of the spring

The mass of the truck can be found from its weight:

m=\frac{W}{g}=\frac{150,000 N}{9.81 N/kg}=15,290 kg

So now we can re-arrange eq.(1) to find the compression, x:

x=\sqrt{\frac{mv^2}{k}}=\sqrt{\frac{(15,290)(2)^2}{8\cdot 10^5}}=0.276 m

Learn more about kinetic energy:

brainly.com/question/6536722

#LearnwithBrainly

6 0
3 years ago
2 less then 3 times a number is 9
Masteriza [31]

\huge\boxed{\text{As an expression:}\ 3x-2=9}

\huge\boxed{\text{Solved for x:}\ x=\frac{11}{3}}

Let's start with "3 times a number". We will use x to represent the number. 3x

"2 less than" is next. -2

Finally, "is 9". =9

Put it all together to get an expression. \boxed{3x-2=9}

Now, let's solve for the unknown number.

Add 2 on both sides of the equation. 3x=11

Divide both sides of the equation by 3 to isolate x. x=\boxed{\frac{11}{3}}

5 0
3 years ago
Read 2 more answers
(c) what is the probability that diameter is within 2 mm of the mean diameter? (round your answer to three decimal places.)
postnew [5]
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7 0
3 years ago
5y-intercept = -5Slope =T3'DO
svp [43]

Answer:

T3 = 30

Step-by-step explanation:

9x + 3y - 6z = 18. 6. 3x-5y+10z= 15.

10x + 4y+5z = 20

3 0
2 years ago
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