All categories

3 years ago

PLEASE ANSWER QUICK

Mathematics

1 answer:

makvit [3.9K]3 years ago

3 0

For the first equation, I put it in y=mx+b form, so y=-3x-9
the second one is x=4
hope i helped

You might be interested in

james puts 5,000 in a savings account earning simple interest at 5.2% annually. how much interest will he earn after 5 years? ho

WITCHER [35]

He will have 250 dollars

6 0

3 years ago

Two rectangles are similar. The ratio of the length of rectangle A to the length of rectangle B is 1:4. If the length of rectang

amid [387]

Answer:

3.5 meters

Step-by-step explanation:

1:4 = x:14 ; where x is the unknown length of A
1/4 = x/14 (Cross multiply)
Giving us, 4×x = 14×1
4x = 14 (Divide both sides by co-efficient of x, which is 4)
x = 14/4
x = 3.5
Therefore, the length of A is 3.5 meters.

8 0

3 years ago

To earn an A in an algebra course, a student must have a test average of at least 90. Mary has grades of 95, 82, 88 on her first

Fofino [41]

Answer: Mary need to make at-least 95 on her fourth test to earn an A in her algebra course.

Step-by-step explanation:

Let x be the grades scored by Mary in the fourth algebra test.

Mary has grades of 95, 82, 88 on her first three algebra tests.

Then, the combined scores in four test will become = 95+82+88+x = 265+x

Average score = (Sum of all scores) ÷ (Number of tests)

$=\dfrac{265+x}{4}$

As per given ,

To earn an A in an algebra course, a student must have a test average of at least 90.

i.e. Average score ≥ 90

$\Rightarrow\ \dfrac{265+x}{4}\geq90\\\\\Rightarrow\ 265+x\geq 90\times4=360\\\\\Rightarrow\ x\geq360-265 =95\\\\\Rightarrow\ x\geq90$

Hence, Mary need to make at-least 95 on her fourth test to earn an A in her algebra course.

5 0

3 years ago

Distance between 2 airports 1,505 miles. Average speed of airplane 420 mph. Flight time hours

-BARSIC- [3]

For this case we have the following definition:
d = v * t
Where,
d: distance
v: speed
t: time
Clearing the time we have:
t = d / v
Substituting values:
t = 1505/420
t = 3,583 hours
Answer:
Flight time hours:
t = 3,583 hours

6 0

4 years ago

What is the verbal expression for this problem?

hodyreva [135]

Answer:

3(9+r)

Step-by-step explanation:

pretty sure that should be it if not then mb

5 0

3 years ago

Read 2 more answers