Answer:
It took 5 hours
Step-by-step explanation:
Because 28 times 5 is 140 plus 25 for the call is 165.
Gary needs 6 bolts for a car repair. The bolts only come in packs of 10.
What percentage of bolts will Gary use in the pack?
Answer: 60%
Step-by-step explanation:
10 percent is 1 bolt so therefore 6 bolts would make 60%
Do these ratios form a proportion 12/16 and 15/20
Answer:
This is a proportion
Step-by-step explanation:
Cross multiply:
12 * 20 = 16 * 15
Simplifying:
12 * 20 = 16 * 15
Multiply 12 * 20
240 = 16 * 15
Multiply 16 * 15
240 = 240
Add '-240' to each side of the equation.
240 + -240 = 240 + -240
Combine like terms: 240 + -240 = 0
0 = 240 + -240
Combine like terms: 240 + -240 = 0
0 = 0
Solving
0 = 0
If an object falls 40 meters in 4 seconds,how far will it fall in6 seconds
Answer:
60 seconds
Step-by-step explanation:
step 1.) find how many meters it falls per second
40m / 4sec = 10m/s
step 2.) use the equation above to find in terms of the question
10m/s for 6sec = 10 x 6 ====> 60 seconds
What is the simplified version of this?[tex]\frac{\sqrt{2} }{3+\sqrt{5} }[/tex]
Answer:
(3√2 - √10)/4Step-by-step explanation:
Simplify, rationalize the denominator
√2/(3 + √5) = √2(3 - √5)/(3 + √5) (3 - √5) =(3√2 - √10)/(3² - 5) =(3√2 - √10)/4There are 18 girls in Mr. Brimley's math class. If 40% of the students are girls, what is the best estimation for the number of boys in the class?
Answer:
27 boiz
Step-by-step explanation:
they want you to solve for b
Answer:
b > -9
Step-by-step explanation:
(-3b > 27) / -3
= b > -9
THE QUESTION IS ON THE PICTURE!
Answer:
24/36
Step-by-step explanation:
Have a nice day..........
PLEASE HELP!! Will give brain and 5 stars
6.) ∆DAY
7.) SAS
Hope it helps ⭐⭐⭐Can anyone please help explain what any of this means and how I could solve this? Many Thanks!
Step-by-step explanation:
step 1. this is a polynomial division problem
x^2 + 11x + 52
---------------------------------
step 2. (x -3) [ x^3 + 8x^2 + 19x + 13
step 3. x^3 - 3x^2
step 4. 11x^2 + 19x + 13
step 5. 11x^2 - 33x
step 6. 52x + 13
step 7. 52x - 156
step 8. R -> 169
step 9. Ans: x^2 + 11x + 52 R 169
Jade is making a square Birthday card for her Mom. She is going to put a ribbon border around each of its 4 equal sides. Her ribbon is 33 inches long and she will use all of the ribbon. How many inches of ribbon will Jade put on each equal side?
Answer:
33 total inches ÷ 4 sides = 8.25 inches along each side
How do you write this out please help
Solve the system of equations by substitution.
3/8x +1/3y=17/24
x+7y=8
Answer:
x=1, y=1.
Step-by-step explanation:
From the second equation:
x = 8 - 7y, so substituting for x in the first equation:
3/8(8 - 7y) + 1/3y = 17/24
3 - 21/8 y + 1/3y = 17/24
1/3y - 21/8y = 17/24 - 3
Multiply through by 24:
8y - 21*3 y = 17 - 72
8y - 63y = -55
-55y = -55
y = 1.
And substituting for y in the second equation:
x + 7(1) = 8
x = 8 - 7
x = 1.
Which points are reflections of each other across both axes? (-2, 8)and(2, -8) (-7, -1)and(-7, 1) (5, -6)and(-5, -6) (4, -3)and (-3, 4)
I need help with Geometry
Answer: 4
Step-by-step explanation:
round off 3409725 to nearest 10
Answer:
10000
Step-by-step explanation:
to know if this answer is correct you have to know the rounding rules:
If the number you are rounding is followed by 5, 6, 7, 8, or 9, round the number up. Example: 38 rounded to the nearest ten is 40.
If the number you are rounding is followed by 0, 1, 2, 3, or 4, round the number down. Example: 33 rounded to the nearest ten is 30.
Enter a range of values for x.
a
(x+2) 370
13
14
-2
Enter
Answer:
Use an app call photo math to get your answer and it shows the step by step on how to do it
Answer:
-2 and 35 is the answer I just took this assignment
12 (x+1/6) = 8 20 points
Answer:
12x + 2
Step-by-step explanation:
12 is multiplyed by both the x and the (1/6) since it is outside the equation.
so 12 times x = 12x since we dont know what x is
and 12 times (1/6) = (12/6) = 2
Solve: 4 - 2 x 8 + (6 x 2) x 4 + 3^2
Answer:
42
Step-by-step explanation:
Answer:
45
Step-by-step explanation:
4 - 2 × 8 + (6 × 2) × 4 + 3²
= 4 - (2 × 8) + (6 × 2) × 4 + 3²
= 4 - 16 + 12 × 4 + 9
= (4 - 16) + (12 × 4) + 9
= -12 + 48 + 9
= 45
Dara's computer monitor is 20 inches wide and 12 inches high. Which measurement is closest to the length of the diagonal of Dara's monitor?
A) 15 inches
B) 16 inches
C) 23 inches
D) 32 inches
Answer:
C) 23
Step-by-step explanation:
If the computer monitor is 20 inches wide, and 12 inches high, we can solve for the diagonal by using the Pythagorean theorem.
Let a = the width, let b= the height, let c = the diagonal.
a^2 + b^2 = c^2
20^2 +12^2 =c^2
400 + 144 = c^2
544 = c^2
C is approximately equal to 23 inches.
Let me know if this helps!
What is the answer plz help
Answer:
9 cm
Step-by-step explanation:
Please let me know if you want me to add an explanation as to why this is the answer/how I got this answer. I can definitely do that, I just wouldn’t want to write it if you don’t want me to :)
Evaluate the expression if b= 6 and c= 10.
5b/c
Answer:
=3
Step-by-step explanation:
5b/c
=5*6/10
=30/10
=3
Answer:
If b = 6 and c = 10, the value of an expression is 3.
Step-by-step explanation:
Given the expression
[tex]\frac{5b}{c}[/tex]
We have to evaluate the expression if b = 6 and c = 10.
Important Tip:
In order to evaluate the expression [tex]\frac{5b}{c}[/tex], all we need to do is to substitute the value of b and c in the expression.
As the expression is
[tex]\frac{5b}{c}[/tex]
substitute b = 6 and c = 10 in the expression
[tex]\frac{5b}{c}=\frac{5\left(6\right)}{10}[/tex]
[tex]=\frac{30}{10}[/tex]
[tex]=3[/tex] ∵ [tex]\frac{30}{10}=3[/tex]
Therefore, if b = 6 and c = 10, the value of an expression is 3.
20 points!
Kathy was packing lunches for her 5 kids. She put the same items in each lunch box. She then decided to add 2 Oreos to each box. All together, she put 30 items in the lunch boxes. Which equation represents this situation?
Answer:
30/5-2 = number of items in each lunch box before adding the 2 Oreos.
Step-by-step explanation:
30/5=6 items in each box
6-2 Oreos=4 item besides the Oreos
30/5-2 = number of items in each lunch box before adding the 2 Oreos.
Solve the equation: 1/2(4x - 16) = 14
what is x
x = 11
x = 3.75
x = -2
x = 5
Answer:
x = 11Step-by-step explanation:
1/2(4x - 16) = 14
2x - 8 = 14 {add 8 to both sides}
2x = 22 {divide both sides by 2}
x = 11
What is the solution to this equation?
1/2x-7=1/3(x-12)
x=
Answer:
[tex]x=18[/tex]
Step-by-step explanation:
By rearranging and multiplying by 6 at the end:
[tex]\frac{1}{2}x - 7 = \frac{1}{3}(x-12)\\\frac{1}{2}-7 = \frac{1}{3}x - 4\\\frac{1}{2}x - \frac{1}{3}x = -4 + 7\\(\frac{3}{6} - \frac{2}{6})x = 3\\\frac{1}{6}x = 3\\x = 3 \cdot 6 = 18[/tex]
Helppppp pleaseeee due in 10 minutes
Answer:this was house ago but 68
Step-by-step explanation:
Answer:
the answer is 68
Step-by-step explanation:
Please help meeeeeeeeeeeee
Answer:
Equation 1: 50 + 5x = 80, Or 5(10 + x) = 80
Equation 1 answer: 6
Equation 2: 5x + 10 = 80
Equation 2 answer: 14
Plzz help 15 points
Which of the following graphs show
f(x) =
x + 1, when x < 1
4, when ≥ 1
Answer:
I think its C if I'm wrong, sorrryyy
PLSSSSSSS HELP IM GIVING LOTS OF POINTS :D
Answer:
2= 4
3= -9
4= 1 and 2/3
PLEASE HELPP!!!!! PLSSSSSSSSSS
Kerri Ann's baby sister was 15 pounds at her last check up. This is a 25% increase
from birth. How much did her baby sister weigh at birth?
Answer:
18.75
Step-by-step explanation:
Choose the linear inequality that describes the graph. The gray area represents the shaded region.
4x – 6y ≥ 10
4x + 6y ≤ 10
4x + 6y ≥ –10
4x + 6y ≥ 10
please help !
Answer:
4x+6y<=10
Step-by-step explanation:
The linear inequality that describes the graph is 4x+ 6y ≤ 10.
What is Inequality?Mathematical expressions with inequalities are those in which the two sides are not equal. Contrary to equations, we compare two values in inequality. Less than (or less than or equal to), greater than (or greater than or equal to), or not equal to signs are used in place of the equal sign.
As, The bold straight line passes through the points (1,1) and (-2, 3).
so, equation of line will be
(y- 1) = (3-1)/ (-2-1) (x-1)
y-1 = 2 / (-3) (x-1)
-3y + 3 = 2x - 2
-3y -2x = -5
If we multiply by 2 both side we get
-6y - 4x = -10
4x+ 6y= 10
So, the required inequality for gray area is 4x+ 6y ≤ 10.
Learn more about Inequality here:
https://brainly.com/question/14379175
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