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3 years ago

Sarah used 3/4 pound of blueberries to make 2/3 cup of jam. How many pounds of blueberries are needed per cup of jam?

Mathematics

1 answer:

avanturin [10]3 years ago

6 0

3/4÷ 2/3= 3/4*3/2= 9/8= mixed fraction 1 1/8 pounds.

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If y varies directly with x and y= 12 when x= 16, what is the value of x when y= 5?

Ierofanga [76]

Answer:

$x = 6 \frac{2}{3}$

Step-by-step explanation:

Since y varies directly with x,

y= kx, where k is a constant.

① Find the value of the constant k.

When y=12, x= 16,

12= k(16)

16k= 12

$k = \frac{12}{16} \\ k = \frac{3}{4}$

②Substitute the value of k back into the equation:

$y = \frac{3}{4} x$

③ Find value of x when y=5.

When y=5,

$5 = \frac{3}{4} x \\ x = 5 \div \frac{3}{4} \\ x = 5 \times \frac{4}{3} \\ x = \frac{20}{3} \\ x = 6 \frac{2}{3}$

5 0

3 years ago

I think it is 15 but I want to see what you guys get and break it down please because sometimes people will say what they got an

zhenek [66]

Answer:

10 + 10 + 10 = 30

5 + 5 + 10 = 20

4 + 4 + 5 = 13

5 + 19 x 2 = 43

Step-by-step explanation:

Pair of shoes = 10

Boy = 5

2 snow cones = 4

One shoe = 5

boy + 2 snow cones + a pair of shoes (his feet) x one snow cone = 43

I really hope this helps!

6 0

3 years ago

Read 2 more answers

David borrowed $2,500 from his local bank. The yearly interest rate is 8%. If David pays the full principle and interest in the

Minchanka [31]

Answer: David would be paying 200.00 per year

Step-by-step explanation:

All you really have to do is just multiply 2,500 to .08 then once when you get your answer then you shift your decimal 2 places to the left.

7 0

4 years ago

Read 2 more answers

Let f(x) = xe−x if x ≥ 0 and f(x) = 0 if x < 0<br> Is f a probability density function?

Lynna [10]

Yes. $f(x)$ is a PDF if

• $f(x) \ge 0$ for all $x$ in the support; this is true, since $e^{-x}>0$ for all $x$ , and multiplying a positive number $x$ doesn't change this fact;

• the integral of $f(x)$ over its support is 1; this is also true, since

$\displaystyle \int_{-\infty}^\infty f(x) \, dx = \int_0^\infty xe^{-x} \, dx = 1$

which can be computed by parts.

3 0

2 years ago

A baker made 9 cupcakes, each a different type. Four people want to share them equally. How many cupcakes will each person get?

Leno4ka [110]

Answer: 2 1/4

Step-by-step explanation:

From the question, we are informed that a baker made 9 cupcakes which are to be shared equally by four people.

To get the number of cupcakes that each person gets, we divide the total number of cupcakes by the total number of people. This would be:

= 9 ÷ 4

= 2 1/4 cupcakes

Therefore, each person gets 2 1/4 cupcakes.

3 0

3 years ago