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Romashka-Z-Leto [24]

3 years ago

8

EASY GEOMETRY**identify the angle shown

2 answers:

swat323 years ago

7 0

<h2><u><em>Answer:</em></u></h2><h2><u><em>B. Straight</em></u></h2><h2><u><em>Hope this helps, have a great day, stay safe, and positive!!</em></u></h2><h2><em>:)</em></h2>

Sophie [7]3 years ago

5 0

Answer:

B

Step-by-step explanation:

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Ed has 93 marbles. In which sequence can he arrange them and use all the marbles?

Kaylis [27]

A.) asequence<span> with six terms that starts with 1

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4 0

3 years ago

There were toy cars,dolls and teddy bears in a shop. 30% of the toys were toy cars. The ratio of the number of dolls to the numb

klemol [59]

Answer:

80 toy cars were left in the shop.

Step-by-step explanation:

Since there were toy cars, dolls and teddy bears in a shop, and 30% of the toys were toy cars, and the ratio of the number of dolls to the number of teddy bears were 4: 1, and there were 156 more dolls than toy cars, and after some toy cars were sold, 16% of the remaining toys in the shop were toy cars, to determine how many toy cars were left in the shop the following calculation must be performed:

Toy cars = 30%

Dolls and teddy bears = 70%

70/5 = 14 x 4 = 56

Dolls = 56%

Teddy bears = 14%

56 - 30 = 26

156/26 = 6 (1%)

Toy cars = 30 x 6 = 180

Dolls = 56 x 6 = 336

Teddy bears = 84

100 - 16 = 84

84 = 336 + 84 = 420

16 = X

84 = 420

16 = X

16 x 420/84 = X

80 = X

Therefore, 80 toy cars were left in the shop.

7 0

3 years ago

What is the solution to the system of equations? 3x- 6y = - 12 x- 2y = - 8 use the substitution method to justify that the given

lesantik [10]

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Step-by-step explanation:

3 0

3 years ago

Blake has some quarters and dimes. He has 20 coins worth a total of $2.90. How many of each type of coin does he have?

marin [14]

6 quarters 14 dimes is the answer

3 0

3 years ago

A 6-foot-wide hallway is painted as shown, using equal amounts of white and black paint.

Degger [83]

we know that

The hallway is painted using equal amounts of white and black paint

so

To know the amount of white paint------> calculate the area of white paint

$A=5x*6=30x\ ft^{2}$

To know the amount of black paint------> calculate the area of black paint

$A=(x+1)*4*6=(24+24x)\ ft^{2}$

equate the areas

$30x=(24+24x)\\30x-24x=24\\6x=24\\x=4\ ft$

<u>Find the length of the hallway</u>

$5x+(4x+4)=9x+4=9*4+4=40\ ft$

therefore

<u>the answer part a) is</u>

The hallway is $40\ ft$ long

<u>Part b) </u>Can this same hallway be painted with the same pattern, but using twice as much black paint as white paint?

we know that

the amount of white paint is $30x\ ft^{2}$

if the black paint is twice that the white paint

then

amount of black paint is $2*30x=60x\ ft^{2}$

amount of black paint with the same pattern is $(24+24x)\ ft^{2}$

equate

(24+24x)\ ft^{2}=(60x)\ ft^{2}

solve for the new value of x

$24x+24=60x\\ 60x-24x=24\\ x=24/36\\x= 2/3\ ft$

<u>Find the new length of the hallway</u>

$5x+(4x+4)=9x+4=9*(2/3)+4=10\ ft$

therefore

<u>the answer is</u>

Yes, the same hallway can be painted with the same pattern, using twice as much black paint as white paint, but the hallway decreases in length

5 0

4 years ago