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Katarina [22]
2 years ago
15

What is x to the nearest tenth?

Mathematics
1 answer:
Damm [24]2 years ago
4 0

Answer:

A. 37.5

Step-by-step explanation:

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The diagram shows the cross-section of a wall of a cinema.
Anna71 [15]

Answer:

  • 280 m²
  • £133

Step-by-step explanation:

The area of the wall is the sum of the areas of the different sections of the wall. The cost to paint it will be the product of the cost of a tin of paint and the number of tins required.

__

Here, the shape of the wall can be divided into two trapezoids and a rectangle. Each shape has a corresponding area formula. Left-to-right, their areas are ...

<u>Left Trapezoid</u>

  A = 1/2(b1 +b2)h

  A = 1/2(10 m +11 m)(4 m) = 42 m²

<u>Middle Rectangle</u>

  A = LW

  A = (13 m)(11 m) = 143 m²

<u>Right Trapezoid</u>

  A = 1/2(b1 +b2)h

  A = 1/2(11 m +8 m)(10 m) = 95 m²

<u>Wall Area</u>

The total area to be painted is the sum of the above areas:

  total area = 42 m² +143 m² +95 m² = 280 m²

The area that needs to be painted is 280 m².

__

A tin of paint covers 15 m², so the number of tins needed is ...

  (15 m²)t = 280 m²

  t = 280/15 = 18 2/3 . . . . . . divide by the coefficient of t

We can only buy whole tins, so we need to buy 19 tins. Their cost will be ...

  (£7 /tin)(19 tins) = £133

It will cost £133 to paint the wall.

7 0
2 years ago
Is 3/8 bigger than 45/100
marusya05 [52]
No, 45/100 is greater. 3/8 as a decimal is .
0.375 and 45/100 is 0.45 the tenth place is larger making the number larger
5 0
3 years ago
What do we get when we break apart 46+26 using place value?
SCORPION-xisa [38]
Tenth blocks   ones blocks
                              
l l l l l l l           o o
6 0
3 years ago
Solve the compound inequality.<br> x+3&lt;0 or 5x&gt;−10
IgorC [24]

Answer:

x + 3 < 0 \:  \: or \:  \: 5x >  - 10 \\  \\ x <  - 3 \:  \: or \:  \: x >  - 2 \\  \\ { \boxed{  \:  \:  - 3 < x <  - 2 \:  \: }}

5 0
2 years ago
Read 2 more answers
Luis earns a base salary of \$150.00$150.00 every week with an additional 14\%14% commission on everything he sells. Luis sold \
tester [92]

Answer: Luis earned $997.00 for last week.

$6,050.00 - 14%= $5,203.00

Just figure the difference ($847)

Then add his base salary.

4 0
3 years ago
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