Answer:
m∠2 = 140°
Step-by-step explanation:
m∠1 = m∠3, since they're vertical angles.
Solve for x:
[tex]2x+28=6x+4\\24=4x\\6=x[/tex]
Plug in 6 for x for either m∠1 or m∠3. Doesn't matter since they're equal.
m∠1 = (2(6) + 28)°
m∠1 = (12 + 28)°
m∠1 = 40°
Now that we know m∠1, we can now solve for m∠2.
m∠1 + m∠2 = 180°
40° + m∠2 = 180°
m∠2 = 140°
¡23
120+3
Use the example as a model. Simplify the
expressions.
= i20 i3
37
DONE
= 15 x 13
= 1 x 13
= -i
Answers are in the picture (don’t need to answer this question this is just here cause It hasn’t been answered yet)
Answer:
Hola hablo alemana
Step-by-step explanation:
find the value of each variable
Donna makes 8 dollars for each hour of work write an equation to represent her total pay p after working h hours
Answer:
8h=p
Step-by-step explanation:
P is pay
H is hour
u make 8 dollars for an hour, so for h hours it would be 8h
What was Zane's unit rate, in words per minute, on each test?
On which test does Zane have the highest unit rate?
Answer:
Test A: 40 words per minute
Test B: 54 words per minute
Test C: 44 words per minute
Test B has the highest unit rate
Step-by-step explanation:
Test A divide 30 by [tex]\frac{3}{4}[/tex] (30/0.75=40)
Test B divide 78 by [tex]1\frac{1}{2}[/tex] (78/1.5=52)
Test C divide 99 by [tex]2\frac{1}{4}[/tex] (99/2.25=44)
Hope this helps :-)
[tex]-noorati[/tex]
solve the equation 12n-60
Answer:
n-5
Step-by-step explanation:
Baby booked into the muffins how many total muffins did he make
Math!!!! Fined the area of the triangle
Answer:
Area = 40 cm²
Step-by-step explanation:
Area of triangle is derived by the formula,
Area = [tex]\frac{1}{2}(\text{Base})(\text{Height})[/tex]
Length of Base = 8 cm
Height of the triangle = 10 cm
Therefore, area of the given triangle = [tex]\frac{1}{2}(8)(10)[/tex]
= 40 cm²
marcia is typing her report for history class. She can type 4 pages in 45 minutes. At that rate, how many pages does she type per hour? Round to the nearest hundredth.
Answer:
5.34 pages/h
Step-by-step explanation:
4/45 = p/60
p ≈ 5.34
Answer:
Step-by-step explanation:
3/4 of an hour is the same as 0.75
Write a proportion.
4 (pages)/0.75 (hours)=p(pages)/1 hour
Cross multiply and divide
(4x1)÷0.75=5.33 (rounded to the nearest hundred)
p=5.33
Marcia can type 5.33 pages per hour.
What is the surface area of the following figure?
Answer:
28 cm2
2 x 7 x 2 = 28
hope this helps
The ratio of the girls to boys in the school
marching band is 10 to 8. If there are 32 boys in
the marching band, how many of the students in
the marching band are girls?
A 38
B, 40
C. 26
D, 42
Bob can complete his Math homework in
2.5 hours, but if he works with Joe they can finish in 1.5 hours. How long would it take Joe to finish his homework on his own?
Answer:
3.75 hours
Step-by-step explanation:
Bob completes his homework in 2.5 hours.
In 1 hour, he completes 1/2.5 of his homework.
Joe completes his homework in x hours.
In 1 hour, he completes 1/x of his homework.
Together, they complete the homework in 1.5 hours.
In 1 hour, they do 1/1.5 of the homework.
1/2.5 + 1/x = 1/1.5
Convert the decimal numbers in the numerators into fractions.
1/(5/2) + 1/x = 1/(3/2)
2/5 + 1/x = 2/3
Multiply both sides by the LCD, 15x.
6x + 15 = 10x
-4x = -15
x = 3.75
Answer: 3.75 hours
Which value of x makes the following equation true? 5 x + 3 x = 72 x
Answer:
I might be wrong
Step-by-step explanation:
x= 9? sorry if that's wrong
Answer:
x =9
Step-by-step explanation:
take off the x
add 5+3=8
divide 72 by 8
answer is 9 so x=9
you can double check by multiplying 5×9 then 3×9 then adding your answers together to give you 72
What transformation preserves angle measures but not side lengths?
Translation
Rotation
Reflection
Dilation
Answer:
translation
Step-by-step explanation:
I'm pretty sure
Find the product
1. 3/2 ×2/5
2. 3/-5×-5/3
Answer:
1- 3/5 or .6
2- 1
Step-by-step explanation:
Is 5/7 greater than or less than 2/8
Answer:
greater than lol
Step-by-step explanation:
Answer:
5/7 is grater than 2/8
Step-by-step explanation:
5/7 = 0.714
2/8 = 0.25
therefore 5/7 is grater than 2/8
Solve for x
- 7 = x - 2
Answer:
x = -5
Step-by-step explanation:
move the variable tothe left hand side change the sign
-x-7= -2
Calculate the sum
-x =5
change the sign on both of the equations
x =
I need help with the first one plz
Answer:
The answer is $3.09
Step-by-step explanation:
Hope this helps
Zack and Dave each bought some coins from jerry online. Dave bought 5 more coins than Zack bought
C. Explain why it’s not necessary to know how many coins Zack bought to determine how much more Dave paid than Zack paid
Answer & Step-by-step explanation:
number of Dave's coins = number of Zack's coins + 5
The question is asking to find the difference in prices paid (thus "more"), completely unrelated to the number of coins Zack bought as these two numbers are independent of one another. The difference in price can be found by simply multiplying the cost of one coin by 5.
What would be the first step to solve this equation x - 5 (x-1) = x - (2x- 3 )
Help me pleaseeeeeeeeeeeeee
Answer:
Step-by-step explanation:
i can't see the number srry:(
If 5 candy bars cost $6, how much will 8 candy bars cost?
(SHOW THE WORK)
Answer:
48$ Hope this helps! (●'◡'●)
Step-by-step explanation:
will give brianlist
Jennifer has a hair ribbon that is 12 centimeters long. What is the length of the ribbon in millimeters? Use the number of zeros of the product when multiplying a number by a power of 10 to help you.
120 millimeters
12 millimeters
1,200 millimeters
1.2 millimeters
need help ASAP!!!!!
What is the common ratio for f(x)=2^x-3+5
Answer:y=2x−3+5
Step-by-step explanation:
) A coin collection consisting of pennies, dimes, and quarters totals 45 coins. The number of
quarters is five more than twice the number of pennies and the number of dimes is four
more than the number of pennies. How much is the coin collection worth?/
9514 1404 393
Answer:
$7.14
Step-by-step explanation:
Let p, d, q represent the numbers of pennies, dimes, and quarters in the collection, respectively.
p + d + q = 45 . . . . . . . . there are 45 coins in the collection
2p +5 = q . . . . . . . . . . . . 5 more than twice the number of pennies
p + 4 = d . . . . . . . . . . . . . 4 more than the number of pennies
Substituting the last two equations into the first gives ...
p +(p +4) +(2p +5) = 45
4p = 36 . . . . . . . . . . . . . subtract 9
p = 9 . . . . . . . . . . . divide by 4
d = 9 +4 = 13
q = 2(9) +5 = 23
The value of the collection is ...
23(0.25) +13(0.10) +9(0.01) = 5.75 +1.30 +0.09 = 7.14
The coin collection is worth $7.14.
If 2x - 3y = 24 and 3x + 4y = 2, what is the value of x - y?
Answer:
2x-3x=24____eqn 1
3x+4y=2____eqn 2
solve eqn 1 and 2 simultaneously using elimination method
eliminate x use the coefficients of x in the two equations to multiply each other i.e
3(2x-3y=24)
2(3x+4y=2)
6x-9y=72
6x+8y=4
eliminate x using the subtraction sign(-)
6x-6x-9y-(+8y)=72-4
-9y-8y=68
-17y=68
divide both side by the coefficient of y
y=68/-17
y=-4
put y=-4 in eqn 2
3x+4y=2
3x+4(-4)=2
3x-16=2
collect like term
3x=2+16
3x=18
divide both side by the coefficient of x
x=18/3
x=6
since we're asked to find x-y
6-(-4)
6+4=10
t a school. number of boys/number if girls =9/7. there are 116 more boys than girls. work out the total number of students at the school
Answer:
928
Step-by-step explanation:
Ratio of boys to girls is 9:7, so boys are 9/(9+7) = 9/16 of the total, and the girls are 7/16
the difference is 9/16-7/16 = 2/16 = 1/8, so
x * 1/8 = 116
x = 116*8 = 928
what is the GCF of: 18k and 15k3
and how do you get that answer
Answer:
List all the factors for 18,15 to find the common factors. The common factors for 18,15 are 1,3 . The GCF for the numerical part is 3 . The factor for k1 is k itself.
Step-by-step explanation:
Answer:
Step-by-step explanation:
Since
18
k
,
15
k
3
contain both numbers and variables, there are two steps to find the GCF (HCF). Find GCF for the numeric part then find GCF for the variable part.
Steps to find the GCF for
18
k
,
15
k
3
:
1. Find the GCF for the numerical part
18
,
15
2. Find the GCF for the variable part
k
1
,
k
3
3. Multiply the values together
Find the common factors for the numerical part:
18
,
15
The factors for
18
are
1
,
2
,
3
,
6
,
9
,
18
.
Tap for more steps...
1
,
2
,
3
,
6
,
9
,
18
The factors for
15
are
1
,
3
,
5
,
15
.
Tap for more steps...
1
,
3
,
5
,
15
List all the factors for
18
,
15
to find the common factors.
18
:
1
,
2
,
3
,
6
,
9
,
18
15
:
1
,
3
,
5
,
15
The common factors for
18
,
15
are
1
,
3
.
1
,
3
The GCF for the numerical part is
3
.
GCF
Numerical
=
3
Next, find the common factors for the variable part:
k
,
k
3
The factor for
k
1
is
k
itself.
k
The factors for
k
3
are
k
⋅
k
⋅
k
.
k
⋅
k
⋅
k
List all the factors for
k
1
,
k
3
to find the common factors.
k
1
=
k
k
3
=
k
⋅
k
⋅
k
The common factor for the variables
k
1
,
k
3
is
k
.
k
The GCF for the variable part is
k
.
GCF
Variable
=
k
Multiply the GCF of the numerical part
3
and the GCF of the variable part
k
.
3
k
Square root of 3
Square root of 36
Square root of 9
Which number is irrational?
Answer:
Square root of 3
Step-by-step explanation:
Answer:
can you help me with this math am not good enough
Can I have help with this question?
Answer:
Step-by-step explanation:
<2, <3, <6 have the measure of 135 degrees
What’s the equation of the line in fully simplified slope-intercept form
Answer:
y= -x - 8
Step-by-step explanation:
To write an equation in slope-intercept form, we naturally need both the slope and the y-intercept. Here, our y-intercept is -8, and our slope is -1. The general form of a line in slope intercept form is y = mx + b, where m is the slope and b is the y intercept. Using our values of m = -1 and b = -8 then gives us the equation y = -x - 8.