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r-ruslan [8.4K]
2 years ago
13

A lorry drives for 4 hours at a speed of 45 mph. Calculate how far it travles

Mathematics
2 answers:
Delvig [45]2 years ago
6 0

Answer:

180 miles

Step-by-step explanation:

Distance = speed x time

45 x 4 =180miles

Leona [35]2 years ago
4 0
Distance = 180
distance = speed x time
distance = 4 x 45
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2 years ago
Solve each compound inequality (show your work!)
zimovet [89]

Answer:  -1 < x < 8

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

Isolate x in the middle.  Perform operations to all 3 sides.

-6 < 2x - 4 < 12

<u>+4 </u>   <u>      +4</u>   <u>+4 </u>

-2 < 2x       < 16

<u>÷2  </u>  <u>÷2      </u>   <u> ÷2 </u>

-1   <   x       <  8

**************************************************************************

Isolate x.  Solve each inequality separately. Remember to flip the sign when dividing by a negative.

       4x ≤ 12       and       -7x ≤ 21

      <u>÷4  </u>  <u>÷4 </u>                 <u> ÷-7  </u>   <u>÷-7 </u>

        x ≤ 3         and         x ≥  3

Since it is an "and" statement, x is the intersection of both inequalities.

When is x ≤ 3 and ≥ 3?    <em>when x = 3</em>

****************************************************************************

Isolate x.  Solve each inequality separately.

    15x > 30       or           18x < -36

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Since it is an "or" statement, x is the union of both inequalities.

When we combine the inequalities, x is every value except 2.

x ≠ 2

4 0
3 years ago
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fredd [130]
Y=-10 and the second one is 13 I think
4 0
2 years ago
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A. 31 to 45

Step-by-step explanation:

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