Answer:
Unit rate: 13 sit ups per minute
65 sit ups can be done in 5 minutes
Step-by-step explanation:
Find the unit rate by dividing 26 by 2
26/2
= 13
This means 13 sit ups can be done in 1 minute.
To find how many can be done in 5 minutes, multiply 13 by 5.
13(5)
= 65
So, the unit rate is 13 sit ups per minute, and 65 sit ups can be done in 5 minutes.
Find the upper bound
Please help me
Find the volume of a cone with diameter of 12 inches and a height of 15 inches
I need to find the exact volume, approximate volume
Answer:
v=565.48668 or rounded up 565.49
Step-by-step explanation:
5x - 2y = 18
-5x + 3y = -22
what is the area of a rectangle if the length is (4x + 2) cm and a width of (5x – 3) cm
Answer:
20x^2−2x−6
Step-by-step explanation:
(4x+2)(5x+−3)
=(4x)(5x)+(4x)(−3)+(2)(5x)+(2)(−3)
=20x2−12x+10x−6
=20x2−2x−6
Hits 2) How many solutions does the inequality have?
A) 0
B) 1
C) 8
D) infinitely many
9514 1404 393
Answer:
D) infinitely many
Step-by-step explanation:
There are infinitely many points on any portion of the number line. The shading on the graph indicates all numbers less than or equal to 8 are solutions. There are infinitely many such numbers.
Write an equivalent expression. -2(7+5g)
Answer:
-2(7) + -2(5g)
Step-by-step explanation:
Using the distributive property we can confirm that:
-2(7) + -2(5g) = -2(7+5g)
Answer:
−14−10g
Step-by-step explanation:
First, solve the product:
-2 ⋅ 7 - 2 ⋅ 5g
Multiply -2 times 7 to -14.
So, the equivalent expression would be:
-14 - 2 ⋅ 5g = -14 - 10g
-14 - 10g
Write the equation of the line with a slope of -5/4 and a y-intercept of 2.
a) y=1/4x+2
b) y=2x-5/4
c) y=-1/4x+2
d) y=-5/4x+2
Answer:
D, y=-5/4x+2
Step-by-step explanation:
the slope always comes before "x", and the y-intercept comes last when written in slope intercept. So y=-5/4x+2 is correct.
need help with all 3 pleaseeee
Ewan has a mango farm that is 75 feet X
50 feet, and he also purchases a 20 feet X
10 feet plot of land. Find the total area of
the farm.
Answer:
3950 feet squared
Step-by-step explanation:
So first you have to multiply 75 by 50, so that is 3750.
Next you have to multiply 20 by 10 and you get 200.
Finally you had both 3750 and 200 in order to get 3950 and that is why the total area of the farm is 3950 feet squared.
What is 60 times 5 twelfths
Answer:
25
Step-by-step explanation:
do 60 and multipy it by 5 then 5/12
and turn it into a proper fraction
Answer:
25
Step-by-step explanation:
60 × [tex]\frac{5}{12}[/tex] = [tex]\frac{300}{12}[/tex]= 25
Two hundred students of a school were surveyed to find out what color to use for the school uniform. The results of the survey are shown by the following graph. What percent of students chose the color Navy Blue?
A. 12%
B. 8%
C. 32%
D. 40%
Answer:
This would be Answer C
Step-by-step explanation:
In the graph It shows you what percentage chose navy blue.
Given triangle ABC, if angle A = 40, a = 65, and angle B = 25. what is the
length of b?
Answer:
x=50
Step-by-step explanation:
40+65+25+x=180
Combine like terms
130+x=180
x=50
(triangles = 180)
Triangle ABC is rotated counterclockwise using the origin as the center of rotation. The preimage and image are shown in the graph below. On a coordinate plane, triangle A B C has points (negative 4, negative 2), (negative 2, 1), (negative 2, negative 1). Triangle A prime B prime C prime has points (1.2, 4.2), (2, 1), (0, 2.9). Which rotation could have taken place?
Answer: it would be C. a 225° rotation
Step-by-step explanation: I got it correct
Answer:
C
Step-by-step explanation:
select the two binomials that are factors of this trinomial.
x^2+4x-32
a. x-8
b. x+8
c. x+4
d. x-4
Answer:
b and d
Step-by-step explanation:
Sum = 4
Product = -32
Factors = 8 , (-4)
x² + 4x - 32 = x² + 8x - 4x - 4*8
= x(x + 8) - 4(x + 8)
= (x + 8)(x - 4)
Test Prep In a jar, 25% of the marbles are red.
If there are 45 red marbles in the jar, how many marbles are in the jar altogether?
Hint
0 70
0 180
O 20
0 11.25
they
Mathematics
180 marbles are in the jar.
What is an Arithmetic operation?Combining operands with a single arithmetic operator specifies an arithmetic operation. The built-in functions ADD, SUBTRACT, DIVIDE, and MULTIPLY can also be used to specify arithmetic operations. in general, we use PEMDAS for calculating various arithmetic operations.
Given 25% of the marbels ar red. and also given 45 marble are red.
Hence Total marble will be,
Total marbles = [tex]\frac{45* 100}{25}[/tex] = 180.
Therefore the total number of marbles in the jar is 180.
Learn more about arithmetic operations here:
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-14 = 4x - 2
what is the x ?
Answer:
X = -3
Step-by-step explanation:
30+5z+5z=180
what is the value of z
Answer:
15
.......................
-7<-2; add 9 to both sides the resulting inequality is
Answer:
2<7
Step-by-step explanation:
-7<=-2
-7+9<-2+9
2<7
Five less than twice the value of a number is equal to three times the quantity of
four more than one-half the number. What is the
number?
a. Let x be the number. Write and solve an equation to find x. Show your work.
b. Does the solution of your equation solve the original problem? Explain.
Answer:
a) x = 34
b) yes, it checks out
Step-by-step explanation:
2x - 5 = 3(4 + 1/2x)
multiply both sides by 2 to eliminate fraction
2[2x - 5 = 3(4 + 1/2x)] = 4x - 10 = 24 + 3x
x - 10 = 24
x = 34
check
2(34) - 5 = 3(4 + 34/2)
68 - 5 = 3(4 + 17)
63 = 3(21)
63 = 63
A free diver can dive at a rate of -0.75 meters per second about how long will it take to reach a depth of -145 meters
Answer:
193 seconds
Step-by-step explanation:
For this problem you'll have to divide so do -145÷-0.75 and your answer will be 193 seconds
Which expressions are equivalent to the one below? Check all that apply.
25%
A. 52.5*
B. 5. 52x
C. 5.5%
D. 54.5
E. (5.5)*
F 52x
Answer:
a,b,d
Step-by-step explanation: jusrt the answer, take my word u totally wont fail lol
The equivalent value of the expressions are solved by the exponents
What are the laws of exponents?When you raise a quotient to a power you raise both the numerator and the denominator to the power. When you raise a number to a zero power you'll always get 1. Negative exponents are the reciprocals of the positive exponents.
The different Laws of exponents are:
mᵃ×mᵇ = mᵃ⁺ᵇ
mᵃ / mᵇ = mᵃ⁻ᵇ
( mᵃ )ᵇ = mᵃᵇ
mᵃ / nᵃ = ( m / n )ᵃ
m⁰ = 1
m⁻ᵃ = ( 1 / mᵃ )
Given data ,
Let the exponential equation be represented as A
Now , the value of A is
A = 25ˣ
On simplifying , we get
A = ( 5 . 5 )ˣ
A = ( 25 )ˣ
And , A = 5ˣ . 5ˣ
From the laws of exponents , we get
mᵃ×mᵇ = mᵃ⁺ᵇ
A = 5²ˣ
A = 25ˣ
Hence , the expressions are ( 5 . 5 )ˣ = 5²ˣ = 5ˣ . 5ˣ = 25ˣ
To learn more about exponents click :
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The complete question is attached below :
Which expressions are equivalent to the one below? Check all that apply.
25ˣ
A family just removed a big tree from their backyard. The diameter of the circular hole left behind is 7 feet across. Approximately how many square feet of gras
area where the tree once was?
Answer:
about 38.48 square feet
What's the largest fraction in each group? a. 5⁄6 and 29⁄36 b. 5⁄12 and 3⁄8 c. 2⁄5 and 19⁄45 d. 5⁄7, 13⁄14, and 19⁄21
Solution :
We have to find the largest fraction in each group.
a). [tex]$\frac{5}{6}$[/tex] and [tex]$\frac{29}{36}$[/tex]
[tex]$\frac{5}{6}$[/tex] → when we divide the number 5 with 6, we get 0.833
[tex]$\frac{29}{36}$[/tex] → when we divide 29 by 36, we get the value 0.805
Therefore, in this group, [tex]$\frac{5}{6}$[/tex] is the largest fraction.
b). [tex]$\frac{5}{12}$[/tex] and [tex]$\frac{3}{8}$[/tex]
[tex]$\frac{5}{12}$[/tex] → when we divide the number 5 with 12, we get 0.416
[tex]$\frac{3}{8}$[/tex] → when we divide 3 by 8, we get the value 0.375
Therefore, in this group, [tex]$\frac{5}{12}$[/tex] is the largest fraction.
c). [tex]$\frac{2}{5}$[/tex] and [tex]$\frac{19}{45}$[/tex]
[tex]$\frac{2}{5}$[/tex] → when we divide the number 2 with 5, we get 0.40
[tex]$\frac{19}{45}$[/tex] → when we divide 19 by 45, we get the value 0.42
Therefore, in this group, [tex]$\frac{19}{45}$[/tex] is the largest fraction.
d). [tex]$\frac{5}{7}$[/tex], [tex]$\frac{13}{14}$[/tex] and [tex]$\frac{19}{21}$[/tex]
[tex]$\frac{5}{7}$[/tex] → when we divide the number 5 with 7, we get 0.714
[tex]$\frac{13}{14}$[/tex] → when we divide 13 by 14, we get the value 0.928
[tex]$\frac{19}{21}$[/tex] → when we divide 19 by 21, we get the value 0.904
Therefore, in this group, [tex]$\frac{13}{14}$[/tex] is the largest fraction.
If a barrel is 1/5 full and holds 16 litres how many litres will it hold when 1/2 full how does it fill
Answer:
40liters
Step-by-step explanation:
Given data
1/5 full holds 16 liters
1/2 full barrel will hold???
Let 1/2 full barrel hold x liters
1/5 holds 16 liters
1/2 will hold x
cross multtiply
1/2*16= x/5
8= x/5
x= 8*5
x= 40 liters
Hence 1/2 full will hold 40liters
hi hi!! please help, it’s 8th grade algebra
Evaluate the following expression:
(16 - 2*2*2) / (12-5*2)
(give answer as a
number... NO WORDS)
Your answer:
Answer:
4
Step-by-step explanation:
Answer:
4
Step-by-step explanation:
(16 - 2*2*2)/ (12-5*2)
(16 - 8)/(12-10)
8/2
4
Sorry, if this doesn't help.
In a mathematics Olympiad, a correct answer is
awarded 3 marks, but a wrong answer is awarded
-1 mark (i.e. 1 mark will be deducted). If no answer
is given, 0 marks will be awarded. Albert took part
in this Olympiad. There were 30 questions. He
answered 17 questions correctly and 5 questions
wrongly. How many marks did he score?
Answer:
So Albert scored = 26 scores it's true and correct ! thank you:)
Solve the simultaneous equations
x+y=3
y=3x−17
Answer:
x=5 , y=-2
Step-by-step explanation:
rearrange y=3x-17 to -3x+y=-17
then subtract to get x or y
x+y=3
- (-3x+y=-17)
4x=20
x=20/4
x=5
then sub in the x value into one of the equations
for x+y=3
(5)+y=3
y=3-5
y= -2
hope this was helpful bestie ༼ つ ◕_◕ ༽つ
Which type of transformation is described by (x, y) (x + 2, Y-3)?
Answer:
I’m good at math but not that good
Step-by-step explanation:
Write a numerical expression for the verbal expression. fourteen decreased by three times four
Answer: 14 - 3(4)
Step-by-step explanation:
Decreased just means subtract
if XY=10 and YZ=8.5 then XZ must be greater that ______, and less than _____.
Answer:
Your answer is
1.5<XZ<18.5
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