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2 years ago

the shop keeper at an inn receives 175 letters a week (7 days). How many letters does he receive in a day

Mathematics

2 answers:

Ivahew [28]2 years ago

8 0

Answer:

25 letters

Step-by-step explanation:

the word problem can be expressed as 175=7x

there are 7 days in a week and you want to find home many there are in one of those days

divide 175 by 7, your answer is 25.

svlad2 [7]2 years ago

4 0

Answer:

Step-by-step explanation:

175 divided by 7 =25

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Isabella bought 4.5 bags of candy for her party baskets. Each bag has 146 pieces of candy. If she has 9 party baskets, how many

Nadusha1986 [10]

73 because 4.5x146= 657 and 657/9= 73

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1 year ago

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Simplify,write equivalent expressions. 1/6(15a+20b)

lutik1710 [3]

1/6* (15a+20b)
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= 2.5a + 10/3*b

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3 years ago

What 2 numbers multiply to get 20 and add to negative 9

madreJ [45]

-5 and -4.
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2 years ago

What is x-2y=-1 and 2x+y=4 using elimination step by step

otez555 [7]

Answer:

x = 7/5 , y = 6/5

Step-by-step explanation using elimination:

Solve the following system:

{x - 2 y = -1 | (equation 1)

2 x + y = 4 | (equation 2)

Swap equation 1 with equation 2:

{2 x + y = 4 | (equation 1)

x - 2 y = -1 | (equation 2)

Subtract 1/2 × (equation 1) from equation 2:

{2 x + y = 4 | (equation 1)

0 x - (5 y)/2 = -3 | (equation 2)

Multiply equation 2 by -2:

{2 x + y = 4 | (equation 1)

0 x+5 y = 6 | (equation 2)

Divide equation 2 by 5:

{2 x + y = 4 | (equation 1)

0 x+y = 6/5 | (equation 2)

Subtract equation 2 from equation 1:

{2 x+0 y = 14/5 | (equation 1)

0 x+y = 6/5 | (equation 2)

Divide equation 1 by 2:

{x+0 y = 7/5 | (equation 1)

0 x+y = 6/5 | (equation 2)

Collect results:

Answer: {x = 7/5 , y = 6/5

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3 years ago

A 10-ft vertical post casts a 12-in shadow at the same time a nearby cell phone tower casts a 126-ft shadow. How tall is the

SVEN [57.7K]

The cell phone tower is 1260 feet tall

<em><u>Solution:</u></em>

Given that 10-ft vertical post casts a 12-in shadow

At the same time a nearby cell phone tower casts a 126-ft shadow

To find: height of cellphone tower

We can use proportion to solve the sum

$\frac{\text {height of post }}{\text {shadow of post}}=\frac{\text {height of tower}}{\text {shadow of tower}}$

Here,

Let "x" be the height of tower

height of post = 10 feet

shadow of tower = 126 feet

shadow of post = 12 inches

We know that,

1 inches = 0.0833333 foot

12 inches = 12 x 0.0833333 foot = 1 foot

shadow of post = 1 foot

Thus the proportion becomes,

$\frac{10}{1} = \frac{x}{126}$

$10 \times 126 = x \times 1\\\\x = 10 \times 126 = 1260$

Thus the cell phone tower is 1260 feet tall

5 0

3 years ago