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3 years ago

Solve for y 32=2y+10

Mathematics

1 answer:

NISA [10]3 years ago

8 0

Answer:

y=11

Step-by-step explanation:

1.) isolate the variable and coeffient by subtracting 10 from both sides to get 22=2y

2.) do the inverse operations to get y by itself so 22 divided by 2 which equals 11

3.) y=11

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Kevin is an expert pastry chef. He can bake and decorate an entire cake in 30 minutes. He can also bake and frost a cupcake in 1

Llana [10]

63 cupcakes is the amount he made.

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4 years ago

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150g of roquefort cheese cost £1.68 work out the cost of 250g of roquefort

mafiozo [28]

ANSWER

250g of Roquefort cheese will cost

£2.8

EXPLANATION

If 150g of roquefort cheese cost £1.68, we can write the ratio,

$150: 1.68$

Let 250g of Roquefort cheese cost £x.

Then we can again write the ratio,

$250:x$

We can equate the two ratios and solve for x.

$150: 1.68 = 250:x$

We rewrite the ratios as fractions to obtain,

$\frac{150}{1.68} = \frac{250}{x}$

We cross multiply to get,

$150x = 250 \times 1.68$
This implies that,

$150x = 420$

Divide both sides by 150 to get,

$x = \frac{420}{150}$
$x = 2.8$

Therefore 250g of Roquefort cheese will cost

£2.8

6 0

4 years ago

What is the gradient of the blue line?? Mathswatch

yaroslaw [1]

Answer:

gradient = -5

Step-by-step explanation:

A line passes (x1, y1) and (x2, y2) has the gradient (slope) which is calculated by:

gradient = (y2-y1)/(x2-x1)

As shown in picture, this blue line passes (-1, 0) and (0, -5)

=> gradient = (-5 - 0)/(0 - -1) = -5/1 = -5

Hope this helps!

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3 years ago

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The final exam grade distribution for all students in the introductory statistics class at a local community college is displaye

Alex73 [517]

The mean of the discrete distribution that models this situation is of 2.98.

<h3>What is the mean of a discrete distribution?</h3>

The expected value of a discrete distribution is given by the sum of each outcome multiplied by it's respective probability.

Considering the table, the probability distribution is given by:

P(X = 4) = 0.4.

P(X = 3) = 0.32.

P(X = 2) = 0.17.

P(X = 1) = 0.08.

P(X = 0) = 0.03.

Hence the mean is given by:

E(X) = 4 x 0.4 + 3 x 0.32 + 2 x 0.17 + 1 x 0.08 + 0 x 0.03 = 2.98.

More can be learned about the mean of a discrete distribution at brainly.com/question/27899440

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2 years ago

-4x=16 what is x in the equation

adell [148]

Answer: x=-4

Step-by-step explanation:

-4x=16

Divide by -4 on each side to cancel it out

x=-4

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3 years ago