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kakasveta [241]
3 years ago
8

There are two sizes of trucks available: larger truck with a 2.5-ton payload, and smaller trucks with 1.5-ton payload. To unload

a freight train 21 larger trucks are needed . How many smaller trucks would be needed for the same job?
Mathematics
2 answers:
amid [387]3 years ago
5 0
You would need 14 small trucks
Bumek [7]3 years ago
5 0

Answer:

35 smaller trucks.

Step-by-step explanation:

Given:

i) The larger truck with a 2.5-ton payload, and smaller trucks with 1.5-ton payload.

ii)  To unload a freight train 21 larger trucks are needed .

Total load of the freight train = 21 times 2.5 tons

= 21  × 2.5

= 52.5 tons

To find the number of small trucks needed, we need to divide 52.5 by 1.5

= 52.5 ÷ 1.5

= 35 small trucks needed.

So, to unload the freight, we need 35 smaller trucks.

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Can you help me please​
IrinaK [193]

Answer:

2. A, the first option

3. A, first option

Step-by-step explanation:

A segment is the part of a line that connects two points. It is the shortest distance between the two points. It has a length.

A ray is a part of a line that has one endpoint and goes on infinitely in only one direction. You cannot measure the length of a ray. A ray is named using its endpoint first, and then any other point on the ray

I hope this helps!!! Have a wonderful day!!!

7 0
3 years ago
Gina is comparing the membership fees for two museums. The art museum charges a one-time fee of $7.25 plus $3.50 per month. - Th
raketka [301]

Answer:

<em>here two links for your answer. https://quizlet.com/325167814/financial-math-flash-cards/ https://quizlet.com/475135130/financial-math-e2020-flash-cards $2.5</em>

<em></em>

<em>Step-by-step explanation:</em>

<em></em>

<em>The art museum charges a one-time fee of $8.25 plus $2.25 per month.</em>

<em></em>

<em>So, the cost function for membership for x months in the art museum f(x) = 8.25 + 2.25x .............. (1)</em>

<em></em>

<em>Again, the science museum charges a one-time fee of $10.75 plus $3.5 per month.</em>

<em></em>

<em>Hence, the cost function for membership for x months in the science museum g(x) = 10.75 + 3.5x ........... (2)</em>

<em></em>

<em>So, from both the equations it is clear that for only joining the monthly charges are zero.</em>

<em></em>

<em>So, f(0) = 8.25 and g(0) = 10.75.</em>

<em></em>

<em>Therefore, Barrett will save by joining the art museum instead of the science museum by $(10.75 - 8.25) = $2.5. (Answer)</em>

<em></em>

Step-by-step explanation:

8 0
3 years ago
PLEASE ANSWER ASAP !!! IM TAKIN A QUIZ
Elanso [62]
Here I did all I can do rn

7 0
3 years ago
Read 2 more answers
Sarah used her calculator to work out the value of a number y .
mars1129 [50]

Answer:

7.75 \: \leqslant y \:  <  \: 7.85

Step-by-step explanation:

The calculator approximated the value of y at 7.8.

We need to complete the error interval for y.

In other words, we calculate the upper and lower bound for y.

The level level of accuracy is to the nearest tenth.

To find the lower bound, we subtract half the degree of accuracy to get:

y \geqslant 7.8 - 0.05  \\ y  \geqslant 7.75

To find the upper bound, add half the level of accuracy to get:

y \:  <  \: 7.8 + 0.05 \\ y \:  <  \: 7.85

Therefore the error interval is

7.75 \: \leqslant y \:  <  \: 7.85

5 0
3 years ago
Is -(x+7)^2+4 a quadratic function?
Oliga [24]
Yes you use the method of your choice to solve (x+7)*(x+7)
Then you distribute the negative -1(x^2+14x+49)
Then you add the four
-x^2-14x-45 should be your answer
5 0
3 years ago
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