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3 years ago

The equation represents the area, A, of a rectangle, in square units.

1 answer:

4 0

Look up "Everything You Need To Know About Math In One Big Fat Notebook pdf." It's the best thing I've ever been given, I have it with me in math class all the time and I've aced every test.

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Vicki set a goal for herself to take at least 10,000 steps per day. According to her pedometer, she has walked 5,274 steps.

Whitepunk [10]

Answer:

x ≥ 4726

Step-by-step explanation:

Target steps = 10000
Already waked = 5274
Steps to take = x

<u>Inequality required:</u>

x + 5274 ≥ 10000
x ≥ 10000 -5274
x ≥ 4726

5 0

3 years ago

Read 2 more answers

Island A is 210 miles from island B. A ship captain travels 230 miles from island A and then finds that he is off course and 180

Ivan

Let the point where the ship turns be C.

A, B and C form a triangle whose have length 230, 210 and 180 miles.

According to the cosine Law:

$|AB|^{2}= |AC|^{2}+|CB|^{2}-2|AC|*|CB|*cos(ACB)$

$210^{2}=230^{2}+180^{2}-2*230*180*cos(ACB)$

$44,100=52,900+32,400-82,800cos(ACB)$

$44,100=85,300-82,800cos(ACB)$

$82,800cos(ACB)=85,300-44,100$

$cos(ACB)= \frac{85,300-44,100}{82,800}=0.5$

Thus, m(ACB)=60°,

thus x=120°

Answer: x=120°

5 0

3 years ago

Melons cost $20 pet Crate, and apples cost $8 per create. an order comes in for a total of 48 crates for $420. what was the numb

Alika [10]

Answer:

The number of melon was 3 and the number of apples was 45.

Step-by-step explanation:

1. Melons cost $20 per crate and apples cost $8 per create. If the total was 48 crates for $420, you can make the following system of equations, where $x$ is the number of melons and $y$ is the number of apples:

$\left \{ {{x+y=48} \atop {20x+8y=420}} \right.$

2. By applying the Method of substitution, you can solve for $y$ in the first equation and substitute it into the second one to find $x$ . Then, you can substitute the value of $x$ into the first equation to find $y$ :

$y=48-x$

$20x+8(48-x)=420\\20x+384-8x=420\\12x=36\\x=3$

$3+y=48\\y=45$

4 0

4 years ago

What is the quotient of 0.72 ÷ -0.9

Marina CMI [18]

0.72 ÷ -0.9 = -0.8

The quotient is -0.8.

4 0

4 years ago

Read 2 more answers

3. A warehouse holds 7,140 shoeboxes. Each aisle holds the same number of

s2008m [1.1K]

Answer:

1) b, c, d

2) d

3) a, c, d

Step-by-step explanation:

Just find the number that can divide by the whole. Say the question was

A pet shop have 20 pets. The same amount of pets are in each room. How many rroms could there be?

If there were 4 rooms, 5 pets would be in each. 20÷4=5. 4 goes into 20 so 4 could be an answer.

If there were 3 rooms, 6 rooms would have 3 pets and 2 would be left over. So it wouldn't work. You just need to find the number that goes into the whole with no remainder.

4 0

3 years ago