Help me plz!
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Answer:
-8
Step-by-step explanation:
10 -2b^2
Let b=-3
10 - 2( -3)^2
Do the exponent first
10 -2(9)
Multiply
10 -18
Subtract
-8
Answer:
- 8
Step-by-step explanation:
Given
10 - 2b² ← substitute b = - 3 into the expression
= 10 - 2(- 3)²
= 10 - 2(9)
= 10 - 18
= - 8
Last month, a car dealer sold 50 cars. This month, 60 cars were sold. Find the percent increase in sales.
Answer:
the sale is an increase of 10 cars. 10 is 20% of 50 so therefore the dealer had an increase of 20% in sales.
PLZZZ HELPPP
Over a one week period in the summer, the price of a gallon of gas increased from $2.35 to $2.82. By what percent did the price of gas increase over that week?
A.
10%
B.
20%
C.
30%
D.
40%
Here's the photo
=0.2 × 0.3
Answer:
0.06
(0.2)(0.3)
=0.06
Write the equation that represents the situation then determine the cost of 5 cans of coffee: A supermarket sells 2 cans of ground coffee for$18.50. The cost of coffee varies directly with the number of cans.
Answer:
The equation is;
C = kg
c is the cost in $
k is the proportionality constant $/can
g is the number of cans
cost of 5 cans of coffee is $46.25
Step-by-step explanation:
From the question, 2 cans of ground coffee costs $18.50
Let c be the cost and g be the number of ground coffee
18.50 = k * 2
where k is the constant of proportionality;
k = 18.5/2
k = 9.25
So, the cost of 5 coffee cans will be;
c = 9.25 * 5 = $46.25
How do I solve this equation using long division?
Answer: 2x2 +3x+5
Step-by-step explanation:
sidjeosidncjskskd HELP
Answer:
Those are the answers
Step-by-step explanation:
This is the best answers i got .
I will give Brainliest to who answers. 9a + 46 = 5a + 74
How long it takes for something to travel a certain distance is the definition of:
Answer: boat
Step-by-step explanation: the farthest it can go is weeks
4.4(a - 9) - a(a + 4) - 5
Answer: − 1 ^2 − 4 1
please help i dont understand this at all. if you could also elaborate too
Answer:
∠A = 115°
∠B = 65°
∠C = 115°
∠D = 65°
Step-by-step explanation:
The figure given is of parallelogram.
We need to find measure of each interior angle.
We are given:
∠A = (2x-15)°
∠B = x°
∠C = (2x-15)°
∠D = x°
We need to find measure of ∠A , ∠B, ∠C, ∠D
We know that sum of all angles of parallelogram = 360°
So, we can write: ∠A +∠B+ ∠C+ ∠D = 360°
Now putting their values and finding value of x first:
[tex]2x-15+x+2x-15+x=360\\Combining\:like\:terms:\\2x+x+2x+x-15-15=360\\6x-30=360\\6x=360+30\\6x=390\\x=\frac{390}{6}\\x=65[/tex]
So, we get x= 65
Now finding measure of each angle:
∠A = (2x-15)° = 2(65)-15 = 130-15 = 115°
∠B = x° = 65°
∠C = (2x-15)° = 2(65)-15 = 130-15 = 115°
∠D = x°= 65°
Answer is:
∠A = 115°
∠B = 65°
∠C = 115°
∠D = 65°
l –3 |
A. 3
B. -3
C. 0.30
D. 30
Answer:
| -3 | = 3
Step-by-step explanation:
minus is removed
pls help me with this question, i tried it many times but couldnt do it :(
Answer:
AEF=110
DEF=70
CFE=30
Step-by-step explanation: Brainliest please
If you want work just lemme know
Maria is making paper flowers as decorations for the fall dance. She has made 40 flowers so far, and she is 16% finished. If she plans to finish making 70% of the total flowers needed by tonight, how many more will she need by then? Please answer soon its due 11:59 tonight!!
Answer:
the number of additional she needed is 135
Step-by-step explanation:
The computation is shown below:
GIven that
40 flowers of 16%
So for 100% it would be
= 40 ×100 ÷ 16
= 250
Now she needs to make is
= 70% - 16%
= 54%
Now the additional would be
= 250 × 54%
= 135
Hence, the number of additional she needed is 135
I kind of need help. I completely forgot how to do ratios
Answer:
7:5
Step-by-step explanation:
a:b=4:5
a:c=2:7
c:b=7:5
brainliest please!!!<3
help please!!! will give brainliest!!
Answer:
try one or three
Step-by-step explanation:
5/6 or 5/9
Answer:
Step-by-step explanation:
It’s A
simplify 6(4x-2)+10 pls i need it
Answer:
2(12x-1)
Step-by-step explanation:
expand the expression
24x-12+10
add the constants
24x-2
take out 2, since it is common
2(12x-1)
Tell which number is greater.
1/3, 30%
Ashley can ride her bicycle 15 miles in 2 hours. There are 60 minutes in 1 hour, and there are 1,760 yards in 1 mile. How many miles does Ashley travel in each minute?
(A) 29 1/3 yards
(B) 440 yards
(C) 14 2/3 yards
(D) 220 yards
Answer:
D the four one is corret
Step-by-step explanation:
D
A product promoter will be working a booth at the county fair. The worker will be paid $30 for the day and an additional $2 for every person they get to sign up for a trial of their product. Write an equation that models the situation. Y represents the total amount of money earned for a day. X represents the number of people signed up for a trial of the product.
Need the answer soon!
What would the Equation be.
Answer:
I believe it is Y=30+2x
Step-by-step explanation:
Since the $30 is given no matter what, we can use it as b.
Since slope always changes, we use it as our m.
X= amount of people
2= charge per person
If there were 5 people there, the equation would look like this: y= $2(5)+$30
The dollar signs are just an aid.
Answer:
Y=2x+30
Step-by-step explanation:
The b is 30
While the slope is 2
Using y=mx+b that will be your answer.
Please answer will give the point thing
What is the slope of the line -3 y = 12 x + 6?
Answer:
Slope = - 4
Step-by-step explanation:
-3y = 12x + 6
Divide the equation by (-3)
[tex]\frac{-3y}{-3}=\frac{12}{-3}x+\frac{6}{-3}\\\\[/tex]
y = -4x - 2
Compare with y = mx + b
m = -4
Solve for x, rounding to the nearest hundredth.
10^3x = 98
Answer:
see explanation
Step-by-step explanation:
10^3x=98
1000x=98
x=98/1000
x=49/500
x=0.98
if it is rounded to the nearest hundredth then x=0
What is the domain of the following function?
Answer:
(-2,7)
Step-by-step explanation:
Can someone help me please
A 7-pack of tickets to the zoo costs $78.61. What is the unit price?
Answer:
$11.23
Step-by-step explanation:
To find the unit price divide the price by the product. For example, 12 ounces of juice costs $2.45. You divide $2.45 by 12 ounces. The unit price would be $0.20.
I hope this helped you, if it did more than all the other answers that may be on your question, feel free to give me brainliest, I would really appreciate it.
A 7-pack of tickets to the zoo costs $78.61. Therefore, the unit price of ticket to the zoo $11.23.
What is division?The division in mathematics is one kind of operation. In this process, we split the expressions or numbers into same number of parts.
Given that a 7-pack of tickets to the zoo costs $78.61.
To find the unit price;
Cost of one pack of ticket to the zoo = total cost of 7 pack of tickets / number of tickets
Cost of one pack of ticket to the zoo = $78.61 / 7
Cost of one pack of ticket to the zoo = $11.23
Therefore, the unit price of ticket to the zoo $11.23.
To learn more about the division;
https://brainly.com/question/13263114
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X=8 in standard form
Please help ASAP
Answer:
Well X=8 in standard form is NaN or 8 * 10 to the power of 0
How do i multiply 13.02 x 5
Determine the correct inequality for the unknown side of the triangle.
A
B
C
D
Lane bought 12 pencils for
$0.39 each. What was the total cost of the
pencils before sales tax was added?
Answer:
4.68
Step-by-step explanation:
simple math and simple multiplication or division