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3 years ago

9

Lois has 10 coins in quarters and dimes in their pocket. After counting, the total value is $1.45. How many of each coin did Loi

s have?

1 answer:

umka21 [38]3 years ago

5 0

I have no idea sorry brainly is making me answer questions here’s a picture of my dog

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Which ordered pair is a solution of the equation y=7x-2

umka2103 [35]

Answer:

(1, 5), (3, 19) (-1, -9)

Step-by-step explanation:

really need the choices

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2 years ago

A square pyramid having a base perimeter of 25cm and a hight of 6cm

Sindrei [870]

Answer:

Do you want to know the surface area of the triangle or the perimeter of the triangle?

Step-by-step explanation:

If you are looking for the Surface area, plug your numbers in this formula: SA=(p x h)/(2) + B where SA is the surface area of the pyramid, p is the perimeter of the base, h is the slant height of the pyramid, and B is the area of the base.

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2 years ago

Wx+yz=bc solve for z

Marina86 [1]

Yz= bc - wx
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3 years ago

Read 2 more answers

A rug is to be centered in a room so that the border around it is of a consistent width on all four sides. If the room is 10 ft

aleksley [76]

Answer:

The width of the border can be 9 feet or 3.5 feet.

Step-by-step explanation:

Let the width be x

Length of room = 10 feet

Breadth of room = 15 feet

Length of rug = 10-2x

Breadth of rug = 15-2x

Area of rug = $(10-2x)(15-2x)$

We are given that the area of the rug is 24 square feet.

So, $(10-2x)(15-2x)=24$ ---A

$150-20x-30x+4x^2=24$

$150-24-50x+4x^2=0$

$126-50x+4x^2=0$

$2(x-9)(2x-7)=0$

$x=9,\frac{7}{2}$

$x=9,3.5$

Substitute x =9 in A

$(10-2(9))(15-2(9))=24$

$24=24$

LHS = RHS

Substitute x = 3.5

$(10-2(3.5))(15-2(3.5))=24$

$24=24$

LHS = RHS

So, The width of the border can be 9 feet or 3.5 feet.

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3 years ago

The US spends on average 10,200 dollars on each student per year. There are about 77,000,000 students in the United States. How

jonny [76]

Answer:

10700 to the 7 power ould be your answer

Step-by-step explanation:

10700

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3 years ago