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jek_recluse [69]
2 years ago
7

The only types of vehicles sold at a certain dealership last month were sedans, trucks, and vans. If the ratio of the number of

sedans to the number of trucks to the number of vans sold at the dealership last month was 4:5:7, respectively, what was the total number of vehicles sold at the dealership last month?1) The number of vans sold at the dealership last month was between 10 and 20.
2) The number of sedans sold at the dealership last month was less than 10.
Mathematics
1 answer:
guapka [62]2 years ago
5 0

Answer:

Therefore, 32  is he total number of vehicles sold at the dealership last month.

Step-by-step explanation:

We know that the ratio of the number of sedans to the number of trucks to the number of vans sold at the dealership last month was 4:5:7, respectively. We have :

4:5:7 \implies  4x+5x+7x=16x

Therefore, 16x is he total number of vehicles sold at the dealership last month.

We know that:

1) The number of vans sold at the dealership last month was between 10 and 20.

2) The number of sedans sold at the dealership last month was less than 10

We get:

10\leq 7x \leq 20\\\implies x=2\\\\\\4x\leq 10\\x=1 \,   \vee \, x=2

We know that x is a positive integer. In order to satisfy both conditions, this is possible only if x = 2.

We get 16x=16\cdot 2=32

Therefore, 32  is he total number of vehicles sold at the dealership last month.

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 V<span>ertical angles are equal.
We have 4x = 2x + 18.
Then, 2x = 18;
x = 18 </span>÷ 2;
x = 9 degrees;
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3 years ago
On Saturday,16,048 people visited the city zoo.1/8 of the people who visited were senior citizens.1/8 were infants.1/4 were chil
MrRissso [65]

Answer:2006 senior

2006 infants

4012 children

8024 adults

Step-by-step explanation

16048 x 1/8= 2006

16048 x 1/4 = 4012

16048 x 1/2= 8024

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3 years ago
PLEASE HELP DUE TODAY!! GIVING BRAINLIEST, REPORTING BITLY ANSWERS
bulgar [2K]

Answer:

Minimum: 50

Lower Quartile:  59

Median:  66

Upper Quartile: 74

Maximum: 92

Step-by-step explanation:

50, 55, 58, 60, 62, 64, 68, 70, 72, 76, 84, 92

Minimum: 50

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Median: (64 + 68)/2 = 66

Upper Quartile: (72 + 76)/2 = 74

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5 0
2 years ago
Which expression has a value of 15 when n = 7? 43 minus 5 n 3 n minus 5 6 n minus 28 19 minus StartFraction 28 Over n EndFractio
andrey2020 [161]

Answer:

19-\dfrac{28}{n} is the expression with value of 15 when n = 7.

Step-by-step explanation:

To find the expression whose value is 15, substitute the value of n = 7 in each given expression.

Expression 1:

43-5n

Substituting the value of n,

43-5\left(7\right)

Simplifying,

43-35=8

Since the value of the expression is 8 which is not equal 15.

Hence expression 43-5n does not have value of 15 when n = 7.

Expression 2:

3n-5

Substituting the value of n,

3\left(7\right)-5

Simplifying,

21-5=16

Since the value of the expression is 16 which is not equal 15.

Hence expression 3n-5 does not have value of 15 when n = 7.

Expression 3:

6n-28

Substituting the value of n,

6\left(7\right)-28

Simplifying,

42-28=14

Since the value of the expression is 14 which is not equal 15.

Hence expression 6n-28 does not have value of 15 when n = 7.

Expression 4:

19-\dfrac{28}{n}

Substituting the value of n,

19-\dfrac{28}{7}

Simplifying,

19-4=15

Since the value of the expression is 15 which is equal 15.

Hence expression 19-\dfrac{28}{n} has the value of 15 when n = 7.

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