All categories

3 years ago

Gas prices went up this week from $4.00 a gallon to $4.20. what is the percent increase of the price?

Mathematics

1 answer:

lutik1710 [3]3 years ago

7 0

4.20 divided by 4.00= 1.05
turn decimal into percentage by times 100
1.05 times 100= 105%

You might be interested in

72 = –6(y + 37)<br> plz help

AlladinOne [14]

Answer:

-49

Step-by-step explanation:

you can first divide both sides by -6

-12 = y+37

so y = -12-37 = -49

8 0

2 years ago

Solve the equation x to the power of 2 = 10

Nadusha1986 [10]

Answer:

The answer is √10,−√10 (award brainliest)

Step-by-step explanation:

Take the root of both sides and solve.

Exact Form: x = √10,−√10

Decimal Form: x = 3.16227766...,−3.16227766...

for more detailed explanation comment down below this post and ask

8 0

2 years ago

PLEASE HELP ASAP ILL GIVE BRAINLIEST!!!!!<br><br>find measure of arc MK

Gwar [14]

Answer:

Arc length MK = 15.45 units (nearest hundredth)

Arc measure = 58.24°

Step-by-step explanation:

Calculate the measure of the angle KLN (as this equals m∠KLM which is the measure of arc MK)

ΔKNL is a right triangle, so we can use the cos trig ratio to find ∠KLM:

$\sf \cos(\theta)=\dfrac{A}{H}$

where:

$\theta$ is the angle
A is the side adjacent the angle
H is the hypotenuse (the side opposite the right angle)

Given:

$\theta$ = ∠KLM
A = LN = 8
H = KL = 15.2

$\implies \sf \cos(KLM)=\dfrac{8}{15.2}$

$\implies \sf \angle KLM=\cos^{-1}\left(\dfrac{8}{15.2}\right)$

$\implies \sf \angle KLM=58.24313614^{\circ}$

Therefore, the measure of arc MK = 58.24° (nearest hundredth)

$\textsf{Arc length}=2 \pi r\left(\dfrac{\theta}{360^{\circ}}\right) \quad \textsf{(where r is the radius and}\:\theta\:{\textsf{is the angle)}$

Given:

r = 15.2
∠KLM = 58.24313614°

$\implies \textsf{Arc length MK}=2 \pi (15.2)\left(\dfrac{\sf \angle KLM}{360^{\circ}}\right)$

$\implies \textsf{Arc length MK}=\sf 15.45132428\:units$

6 0

1 year ago

Find each sum or difference -8/35+2/5=

Alexxandr [17]

Answer:

6/35

Step-by-step explanation:

change 2/5 to 14/35 so the denominators are even.

after that you get -8/35+14/35

then you get 6/35

8 0

2 years ago

Read 2 more answers

Write the equation of the line that contains the points (4, −7) and (1, 5). The slope of the line that contains the points (4, −

deff fn [24]

Slope = (5+7)/(1-4) = 12/-3 = -4

slope = -4

y = mx + b
-7 = -4(4) + b
-7 = -16 + b
b = 9

equation
y = -4x + 9

4 0

2 years ago

Read 2 more answers