need help with #10 please

Step-by-step explanation:

The usual thing to do is to try to get rid of one variable first. So to get rid of x, we multiply the first equation by 5.

5(x + y) = 2(5)

-5x - 5y = -10

---> 5x + 5y = 10

-5x - 5y = -10

---> 0 = 0

As you can see, everything cancels out. If the statement is true, then it is infinitely many solutions.

Answer:

2/3 of an hour is 40 minutes so

40 x 7 = 280

You would practice that musical instrument 280 hours after a week

***hope this helps

Step-by-step explanation:

Answer:

14/3

Step-by-step explanation:

Answer:

To distribute means to divide something or give a share or part of something. According to the distributive property, multiplying the sum of two or more addends by a number will give the same result as multiplying each addend individually by the number and then adding the products together.

The distributive property states that an expression which is given in form of A (B + C) can be solved as A × (B + C) = AB + AC.

Distributive property says that the sum of two or more addends multiplied by a number gives you the same answer as distributing the multiplier, multiplying each addend separately, and adding the products together.

According to the distributive property, multiplying the sum of two or more addends by a number produces the same result as when each addend is multiplied individually by the number and the products are added together.

Example: Find the product using distributive property 6(42+35)

Now, 6(42+35)

= 6×42+6×35

= 252+210

= 462

Hence, the distributive property states that an expression which is given in form of A (B + C) can be solved as A × (B + C) = AB + AC.

Learn more about the distributive property here:

https://brainly.com/question/5637942.

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9514 1404 393

Answer:

  (b)  Hiking 10 feet due north, then hiking 10 feet due south

Step-by-step explanation:

Any pair of numbers that totals zero will be a pair of opposites. The offered choices are ...

  +6 -4 = 2 . . . not zero

  +10 -10 = 0

  +2 -3 = -1 . . . not zero

  +5 -3 = 2 . . . not zero

Hiking 10 feet due north, then hiking 10 feet due south is a situation involving opposite numbers adding up to zero.

9514 1404 393

Answer:

  3x² -17x +10

Step-by-step explanation:

Use the distributive property and collect terms.

  (x -5)(3x -2) = x(3x -2) -5(3x -2)

  = (3x² -2x) +(-15x +10)

  = 3x² -17x +10

Answer:

Answer is B because I had this homework and I got it right :)

A fraction is written in the form of a numerator and a denominator where the denominator is greater than the numerator.

The number of 1/3 cups of servings in 10/3 cups of dried beans is 10 cups of servings.

i.e

= 10/3 ÷ 1/3

= 10/3 x 3/1

=  10/3 x 3

= 3

A fraction is written in the form of a numerator and a denominator where the denominator is greater than the numerator.

Example: 1/2, 1/3 is a fraction.

We have

Number of dried beans = 10/3 cups

The number of 1/3 cup servings can be found by dividing the total number of cups of dried beans by 1/3.

The number of 1/3 cup servings:

= Number of dried beans cups ÷ 1/3

= 10/3 ÷ 1/3

= 10/3 x 3/1

= 10 cups servings

Thus,

The number of 1/3 cups of servings in 10/3 cups of dried beans is 10 cups of servings.

Learn more about fractions here:

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Probabilities are used to determine the chances of an event.

The probability that the two bags are selected for extra screening is 0.02

The given parameters are:

[tex]n = 2[/tex] --- number of bags

[tex]p = 14\%[/tex] --- the probability that a bag is selected for extra screening

The probability that the two bags are selected for extra screening is:

[tex]P(2) = p^n[/tex]

So, we have:

[tex]P(2) = (14\%)^2[/tex]

Express percentage as decimal

[tex]P(2) = (0.14)^2[/tex]

[tex]P(2) = 0.0196[/tex]

Approximate

[tex]P(2) = 0.02[/tex]

Hence, the required probability is 0.02

Read more about probabilities at:

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Answer:

0.02 i did khan academy pls mark brainliest

Step-by-step explanation:

Answer:

.30times 28.99=$8.697

Answer:

A=(-2,-2) B=(-2,-6) D=-5,-2 C=(-5,-6)

Step-by-step explanation:

that's what it's graph looks like.

Step-by-step explanation:

[tex] |2w + 8| \geqslant 15[/tex]

[tex] \implies \mathsf{2w + 8 \geqslant 15 \: }\\ \mathsf{or }\\ \mathsf{ \: 2w + 8 \leqslant - 15}[/tex]

(that's a property, if |x| >= a

=> x >= a or x <= -a)

[tex] \implies \mathsf{2w \geqslant 15 - 8\: }\\ \mathsf{or }\\ \mathsf{ \: 2w \leqslant - 15 - 8}[/tex]

[tex]\implies \mathsf{2w \geqslant 7\: }\\ \mathsf{or }\\ \mathsf{ \: 2w \leqslant -23}[/tex]

[tex]\implies \mathsf{w \geqslant \frac{7}{2} \: }\\ \mathsf{or }\\ \mathsf{ \: w \leqslant \frac{ - 23}{2} }[/tex]

Answer:

7/17

Step-by-step explanation:

Answer:

11 flowers

Step-by-step explanation:

Using weighed average, it is found that the student will need a GPA of 3.31.

To find a weighed average, each value is multiplied by it's weight.

For the student's average, we have that:

We want the mean to be 3.2, thus:

[tex]\frac{3.15(32) + 14x}{32 + 14} = 3.2[/tex]

[tex]3.15(32) + 14x = 46(3.2)[/tex]

[tex]14x = 46(3.2) - 32(3.15)[/tex]

[tex]14x = 46.4[/tex]

[tex]x = \frac{46.4}{14}[/tex]

[tex]x = 3.31[/tex]

The student will need a GPA of 3.31.

A similar problem is given at https://brainly.com/question/16233451

Answer:

1,000 days

Step-by-step explanation:

6 tires per minute = 600 per hour

600 per hour times 10 hours = 6,000 per day

Divide 6,000,000 by 6,000 per day = 1000 days.

Answer:

[tex]{ \rm{V(x) = 4x {(10 - x)}^{2} }} \\ \\ { \rm{ \frac{dv}{dx} = 4 {(10 - x)}^{2} + 4x( - 2(10 - x))}} \\ \\ { \rm{ \frac{dv}{dx} = 4 {(10 - x)}^{2} + 4x( - 20 - 2x) }} \\ \\ { \rm{ \frac{dv}{dx} = 4(100 - 20x + {x}^{2} ) + ( - 80x - 8 {x}^{2} ) }} \\ \\ { \rm{ \frac{dv}{dx} = - 4 {x}^{2} - 160x + 400}}[/tex]

• But at maximum volume, dv/dx is 20 square inches.

[tex]{ \rm{ - 4 {x}^{2} - 160x + 400 =2 0}} \\ \\ { \rm{ {x}^{2} + 40x - 95 = 0}}[/tex]

• Using the quadratic formula:

[tex]{ \underline{ \rm{ \: \: x \approx3\: \: squares \: \: }}}[/tex]

• Therefore,

For maximum volume,

[tex]{ \rm{V(x) = 4x(10 - x) {}^{2} }} \\ \\ { \rm{V(3) = (4 \times 3)(10 - 3) {}^{2} }} \\ \\ { \rm{V(3) = 12 \times 49}} \\ \\ { \boxed{ \rm{V = 588 \: {in}^{3} }}}[/tex]

Answer:

6^(1/10)

Step-by-step explanation:

[tex] = {6}^{ \frac{3}{10} - \frac{1}{5} } = {6}^{ \frac{1}{10} } [/tex]

121.37

there thank me later

Answer:

To the right

Step-by-step explanation:

The negatives on a number line are on the left side and the positives on the right.

see this as an example:

The number line that you really want to move is the right side. Then, at that point, the right choice is C.

A number line alludes to a straight line in science that has numbers organized at customary stretches or divides along its width. A number line is frequently shown on a level plane and can be delayed toward any path.

On the off chance that you are at - 15 on the number line and you needed to push toward the positive numbers

The number line that you need to move in the right side. Then the correct option is C.

More about the number line link is given below.

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Answer:

D

Step-by-step explanation:

Recall that a⟌b means b/a. So, we want to find the expression: 20⟌4 and 4 ÷ 20. By examining, we see that D has those two expressions.

So, the answer is [tex]\boxed{D}[/tex] and we're done!

Answer:

Answer:

D

Step-by-step explanation:

Recall that a⟌b means b/a. So, we want to find the expression: 20⟌4 and 4 ÷ 20. By examining, we see that D has those two expressions.

So, the answer is  and we're done!

Answer:

k = 7

Step-by-step explanation:

-40+25k +5k = -250

30k = -250 + 40

k = -210/30

k = 7

Answer:

2/5

Step-by-step explanation:

40% = 40/100 = 4/10 = 2/5

Answer:

2/5

Step-by-step explanation:

40%/100% =2/5

you just take the 40% and divide with one hundred %

Answer:

-42 x 4

Step-by-step explanation:

it multiplies to -168 and adds up to -38

Answer: It B the distributive property

:D

Temperature

the temperature in Sitka 2 hours after midnight is :

= 29.7°F + (2 × 1.23°F)

= 29.7°F + 2.46°F

= 32.16°F

So, the temperature in Sitka 2 hours after midnight is 32.16°F

#LearnWithEXO

Answer:

Step-by-step explanation:

After 2 hours the temperature is: