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3 years ago

10

Find the surface area of a square pyramid with a base length of 11 cm and a slant height of 15

2 answers:

san4es73 [151]3 years ago

7 0

Yes I do believe it is D

just olya [345]3 years ago

3 0

Yes the answer to the question is d

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Gabe Amodeo, a nuclear physicist, needs 60 liters of a 40% acid solution. He currently has a 30% and a 60% solution. How many li

Oksana_A [137]

You have to add them the find the reciprocal and divided to find the width then turn it to a fraction them multiply and subtract again and find your answer

3 0

2 years ago

PLEASE HELP ME <br><br>11) Which letter best shows ? 12) Which letter best shows ?

Dafna1 [17]

Answer:

32

Step-by-step explanation:

7 0

2 years ago

Williiam lost 25% of his marble,gave 1/6 of the remainder to his.Brother and had 120 marbles left.How many marbles did he have a

bija089 [108]

Answer:

Number of marbles with Williams at the starting = 192

Step-by-step explanation:

Let total number of marbles with Williams = m

He lost marbles = 25% of the total number

= $\frac{25}{100}\times m$

= $\frac{m}{4}$

Remaining marbles with Williams = m - $\frac{m}{4}$

= $\frac{3m}{4}$

He gave marbles to his brother = $\frac{1}{6}$ th of the remaining marbles

= $\frac{1}{6}\times \frac{3m}{4}$

= $\frac{m}{8}$

Remaining marbles after giving marbles to his brother = 120

Therefore, $\frac{3m}{4}-\frac{m}{8}=120$

$\frac{6m}{8}-\frac{m}{8}=120$

$\frac{5m}{8}=120$

m = $\frac{120\times 8}{5}$

m = 192

Number of marbles with Williams at the starting = 192

5 0

3 years ago

Plz, help ASAP!!! WILL MARK YOU BRAINLIEST IF UR ANSWER IS CORRECT QUESTION #5

bija089 [108]

Answer:

D.

Step-by-step explanation:

The domain remains the same [a, b) and the range is [mc + n,md + n).

5 0

3 years ago

6n + 9 = -3 - 21 - 6

denis23 [38]

$6n+9=-3-21-6$
subtract the numbers: $-3-21-6=-30$
$6n+9=-30$
subtract 9 from both sides
$6n+9-9=-30-9$
simplify
$6n=-39$
divide both sides by 6
$\frac{6n}{6}= \frac{-39}{6}$
$n= \frac{-13}{6}$
decimal $n=-6.5$
Hope this helps :)

3 0

2 years ago