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2 years ago

Brainiest and 30 points (ignore marked answer)

Mathematics

1 answer:

hammer [34]2 years ago

7 0

Answer:

77 degrees

Step-by-step explanation:

You have to study

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Maya starts with $300 in her bank account. Each month she spends $40. What is the slope in this equation , and what is the y- in

Neporo4naja [7]

Answer: y=300-40x

The y-intercept would be 300

The slope would be -40

Step-by-step explanation:

x=number of months

300 is the amount she starts with

Equation can also be written like so; y=-40x+300 just like in y=mx+b (slope intercept) form

6 0

2 years ago

WILL GIVE BRAINLIEST

stira [4]

The air force plane travelled for a total of 6.9 hours.

SOLUTION: 

Given, An Air Force plane left Nairobi and flew west at an average speed of 159 mph. A cargo plane left sometime later flying in the same direction at an average speed of 207 mph. After flying for 5.3 hours the cargo plane caught up with the Air Force plane.

We have to find the number of hours the Air Force plane flew before the cargo plane caught up.

Now, we know that, $\text { distance travelled }=\text { speed } \times \text { time }$

For air force plane $\rightarrow \text { distance travelled }=159 \mathrm{x} \text { time taken by air force plane }$

$\text { For cargo plane } \rightarrow \text { distance travelled }=207 \times 5.3 \text { hours }$

Now, when cargo plane caught the air force plane the distance travelled by the planes will be equal.

So, $159 \times \text { time taken by air force plane }=207 \times 5.3$

$\Rightarrow =\frac{207 \times 5.3}{159}$

$\Rightarrow =\frac{1097.1}{159}$

Time taken by air force plane = 6.9 hrs

6 0

2 years ago

The sides of a rectangle have the ratio 7:2. its perimeter is 207cm. Find the area

castortr0y [4]

X - unit of length
w,l - the sides of a rectangle

7 : 2 ⇒ 7x : 2x

Perimeter: P = 207cm
Perimeter: P = 2w + 2l

therefore: 2w + 2l = 207 |divide both sides by 2

w + l = 103.5 (cm)

w : l = 7 : 2 ⇒ w : l = 7x : 2x ⇒ w = 7x; l = 2x

subtitute

7x + 2x = 103.5
9x = 103.5 |divide both sides by 9
x = 11.5 (cm)

7x = 7 · 11.5cm = 80.5cm
2x = 2 · 11.5cm = 23cm

w = 80.5cm; l = 23cm

Area = wl

Area: A = 80.5cm · 23cm = 1851.5cm²

8 0

3 years ago

Write an equation in a slope y-intercept form (y=mx+b) slope: 1/3 y-intercept: 2

e-lub [12.9K]

Answer:

y= 1/3x+2

Step-by-step explanation:

m= slope

y-intercept= b

8 0

3 years ago

Read 2 more answers

Give the excluded values for 6/t+5 + 2/t-5 = 3t-1/t^2-25. Do not solve

Elena L [17]

Answer:

B -5, and 5

Step-by-step explanation:

you can't have zero on the bottom

3 0

2 years ago