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3 years ago

The missing number in the arithmetic sequence: 20,

Mathematics

1 answer:

antoniya [11.8K]3 years ago

4 0

Answer:

Step-by-step explanation:

it is missing where ?

based on the answer options I guess it is missing between 20 and 36.

if that is true, then the answer is 28.

the difference between 36 and 44 is 8.

the difference between 20 and 36 is 16.

the right answer should cut the interval of 16 into 2 parts (first logical approach to cut it in 2 halves of 8) and be related to the next interval between 36 and 44 (8).

the solution covering both considerations is the middle of the large interval = 20 + 8 = 28.

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At a lemonade stand, pink lemonade costs $2.50 and sweet tea lemonade costs $4. In one morning, the stand sells 21 drinks for $6

snow_tiger [21]

Answer:

lemonade = 11

Step-by-step explanation:

let p = pink lemonade

let t = sweet tea

create a system of equations -- one with quantity, one with associate costs

p + t = 21

2.5p + 4t = 67.5

substitution method: let t = 21 - p

2.5p + 4(21 - p) = 67.5

2.5p + 84 - 4p = 67.5

-1.5 p = -16.5

p = 11

t = 21 - 11

t = 10

4 0

3 years ago

Can someone please help me with these 4 geometry questions

Brilliant_brown [7]

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3 years ago

What is 1/8 in a decimal

sukhopar [10]

To get the answer, divide 1 by 8
Which equals 0.125
And that is your answer.

Hope I Helped You!!! :-)

Have A Good Day!!!

7 0

3 years ago

Read 2 more answers

What value of p makes the equation true? 3/5p + 1/5 (40-p) = 0

nataly862011 [7]

Answer:

The value of p=-20 makes the equation true

Step-by-step explanation:

we have

$\frac{3}{5}p+\frac{1}{5}(40-p)=0$

Solve for p

Multiply by 5 both sides to remove the fraction

$3p+(40-p)=0$

Combine like terns left side

$2p+40=0$

subtract 40 both sides

$2p+40-40=0-40$

$2p=-40$

Divide by 2 both sides

$p=-20$

therefore

The value of p=-20 makes the equation true

3 0

3 years ago

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Find the height of a square pyramid that has a volume of 12 cubic feet and a base length of 3 feet. 1.5 feet 2 feet 3 feet 4 fee

zaharov [31]

So the pyramid looks like the one in the picture below.

notice, the bottom of the pyramid is a square, thus is called that, and each side is 3 units long, thus

$\bf \textit{volume of a pyramid}\\\\
V=\cfrac{1}{3}Bh~~
\begin{cases}
B=area~of\\
\qquad its~base\\
h=height\\
----------\\
V=12\\
B=\stackrel{3\times 3}{9}
\end{cases}\implies 12=\cfrac{(9)h}{3}\implies 12=3h
\\\\\\
\cfrac{12}{3}=h\implies 4=h$

6 0

3 years ago