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3 years ago

PLEASE HELP ILL GIVE BRAINLIEST!!!

Mathematics

1 answer:

Fudgin [204]3 years ago

8 0

Area of triangle roof:

= 1/2 (3.5)(1.2)

= 2.1 m^2

Area of large rectangle:

= 3.5 x 2.5

= 8.75 m^2

Area of small rectangle (door):

= 1.5 x 2

= 3 m^2

Total area:

= 2.1 m^2 + 8.75 m^2 +

= 13.85 m^2

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Three friends go bowling the cost per person per game is $ 5.30 the cost to rent shoes is $ 2.50 per person.Their total cost is

siniylev [52]

Find cost of shoes first (7.50)
subtract from the total value (55.20-7.50= 47.7)
then divide by 5.30 (47.7/ 5.3= 9)

4 0

3 years ago

What is 75% of 162? Show your work and/or explain your reasoning.

zhannawk [14.2K]

Answer:

121.5

Step-by-step explanation:

75% = 75/100

Step 2 - Mutiply percenatge fraction by the entire (100%) quantity

75/100× 162 = 121.5

Final result

75 percent of 162 is 121.5

3 0

3 years ago

Read 2 more answers

Rueben has scored 81 , 89 , 90 , 83 , and 77 on his previous five tests. what score does he need on his next test so that his av

lawyer [7]

Let x = the next score

If (81 + 89 + 90 + 83 + 77 + x) ÷ 6 = 82

⇒ 420 + x = (82 × 6)

⇒ x = 492 - 420

x = 72

Thus to get an 82 average he need to get 72 on his next test.

7 0

3 years ago

What is the nth term?

kumpel [21]

Let $a_k$ denote the kth term of the sequence. Then

$a_k=a_1+d(k-1)$

where d is the common difference between consecutive terms in the sequence and a₁ is the first term.

The sum of the first n terms is

$S_n=\displaystyle\sum_{k=1}^na_k=a_1+a_2+\cdots+a_{n-1}+a_n$

From the formula for $a_k$ , we get

$S_n=\displaystyle\sum_{k=1}^n(a_1+d(k-1))=a_1\sum_{k=1}^n1+d\sum_{k=1}^n(k-1)$

$S_n=\displaystyle na_1+d\sum_{k=0}^{n-1}k$

$S_n=na_1+\dfrac{d(n-1)n}2$

$S_n=\dfrac n2(2a_1-d+dn)$

So we have $d=-5$ , and $2a_1-d=16$ so that $a_1=\frac{11}2$ .

Then the nth term in the sequence is

$a_n=\dfrac{11}2-5(n-1)=\boxed{\dfrac{21-10n}2}$

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3 years ago

Sheet of paper. 1. y<4

TiliK225 [7]

Is there any more to the question? i’m confused

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3 years ago