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2 years ago

Solve for d. d•3/10=1/4

Mathematics

2 answers:

vladimir2022 [97]2 years ago

7 0

Answer:

5/6

Step-by-step explanation:

Multiply both sides of equation by 10/3.

d = 1/4 × 10/3

d = 10/12 = 5/6

Makovka662 [10]2 years ago

6 0

Step-by-step explanation:

If you divide by a fraction you can write it as multiplying with the opposite of that fraction

d=1/4 / 3/10

d=1/4 × 10/3=10/12=5/6

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If f(x)=-2x-3 what is f(r+2) ?

fiasKO [112]

Answer:

$f(x) = - 2x - 3$

when x is r + 2 :

$f(r + 2) = - 2(r + 2) - 3 \\ = - 2r - 4 - 3 \\ = - 2r - 7 \\ \\ { \boxed{ \boxed{f(r + 2) = - 2r - 7}}}$

4 0

3 years ago

The sum of 4 consecutive multiples of 6 is 540. What is the greatest of these numbers?

pychu [463]

Answer:

144

Step-by-step explanation:

First: 6x

Second: 6x+6

Third: 6x+12

Fourth: 6x+18

- Since they're multiples of 6

$6x+6x+6+6x+12+6x+18=540$

$24x+36=540\\$

Subract 36 from each side give us...

$24x=504\\x=21$

$21(6)+18=144$

Hope this helped! Please mark brainliest :)

4 0

3 years ago

What two numbers have a sum of 24 and have a quotient of 3?

gogolik [260]

1st number is x
then the other will be 3x
3x+x=24
4x=24
x=6-first number
2nd is 3*6=18

7 0

3 years ago

Read 2 more answers

There is a trapezoid behind the net in hockey. Use the graphic to find the area of the trapezoid.

Stels [109]

Answer:

253 square feet

Step-by-step explanation:

1/2 × 11 ft × (28 ft + 18 ft) = 253 square feet.

8 0

3 years ago

The number of surface flaws in a plastic roll used for auto interiors follows a Poisson distribution with a mean of 0.05 flaw pe

ElenaW [278]

Answer:

0.6065

Step-by-step explanation:

Probability mass function of probability distribution : $P(X=x)=\frac{e^{-\lambda} \times \lambda^x}{x !}$

a mean of 0.05 flaw per square foot

Each car contains 10 sq.feet of the plastic roll

Mean = 0.05

Mean = $\lambda = 0.05 \times 10=0.5$

We are supposed to find What is the probability that there are no flaws in a given car’s interior i.e,P(X=0)

Substitute the value in the formula

$P(X=0)=\frac{e^{-0.5} \times (0.5)^0x}{0 !}$

$P(X=0)=\frac{e^{-0.5} \times (0.5)^0}{1}$

$P(X=0)=0.6065$

Hence the probability that there are no flaws in a given car’s interior is 0.6065

5 0

2 years ago