subtract 9a from -15a
Answer:
24a
Step-by-step explanation:
mb
24a if it's wrong correct me in the comments
please help i will give you brain list pleaseeeee!
Answer:
-30x^17
Step-by-step explanation:
if multiply
Answer:
-60x^16
Step-by-step explanation:
You're welcome lol
What is the slope of a line of best fit that has the points (20, 12) and (30, 6) on it?
Answer:
-6/10
I don't know if this is right so, sorry if its wrong.
In ABC, what is the value of x?
Pls hurry im on a time limit here
Answer:
70
Step-by-step explanation:
By exterior angle theorem:
[tex](2x + 12) \degree = 112 \degree + 180 \degree - 2x \degree \\ \\ (2x + 12) \degree = 292 \degree - 2x \degree \\ \\ (2x + 12) \degree + 2x \degree = 292 \degree \\ \\ (2x + 12 + 2x) \degree = 292 \degree \\ \\ (4x + 12) \degree = 292 \degree \\ \\ 4x + 12 = 292 \\ \\ 4x = 292 - 12 \\ \\ 4x = 280 \\ \\ x = \frac{280}{4} \\ \\ x = 70[/tex]
1/4 of the 5th graders are on the school drill team. 2/3 of the 5th graders drill team members are boys. What fraction of the 5th graders are boys on the drill team?
read each problem carefully and solve as required then answer the questions that follow
Answer:
Step-by-step explanation:
1) Number of children = c
Number of adults = a
Total ticket = 250
c + a = 250 -------------------(I)
Cost of 'c' children tickets = 200c
Cost of 'a' adult tickets = 450a
Total cost = 76000
200c + 450a = 76000 ------------------(II)
Multiply (I) by (-200) and then add
(I)*(-200) -200c - 200a = -50000
(II) 200c + 450a = 76000
250a = 26000
a = 26000/250
a = 104
Plug in a = 104 in equation (1)
c + 104 = 250
c = 250 - 104
c = 146
2)Number of children = 146
Number of adults = 104
Look at the picture it has the questions and answers please help!
Answer:
Y=2.2
Step-by-step explanation:
BECAUSE OF THE MULTIPLES
what is the smallest number of integer kilogram weights needed to weigh every whole kilogram between 1kg and 40kg?
9514 1404 393
Answer:
4
Step-by-step explanation:
We assume you are using a balance, and that weights can be put in either pan. In that case, weight values can be either added or subtracted, so there are 3 possibilities for the contribution each weight makes. In other words, we need to find how many digits are required to count to 40 in base 3.
The largest 3-digit number in base 3 is ...
3^2 +3^1 + 3^0 = 13 (base 10)
The largest 4-digit number adds 3^3 = 27 to this: 27 +13 = 40.
Hence, we can weigh values 0 to 40 using 4 weights, of sizes 1, 3, 9, 27.
__
Some example weights are ...
5 = 9 - 3 - 1
38 = 27 + 9 + 3 - 1
where the "negative" weights are placed in the same pan as the unknown.
Find the slope of the line that passes through
(4,6) and (6,4) *
-4
1/4
3
-1
Answer:
m= -1
Step-by-step explanation:
You solve slope by using y2-y1/ x2-x1 so,
4-6/6-4
=-2/2
= -1
In a Sequence the first term is 8 and the common difference is -5 the fifth term in the sequence is
Answer:
[tex]a_5=-12[/tex]
Step-by-step explanation:
Given that,
The first term of the sequence, a = 8
Common difference, d = -5
We need to find the fifth term of the sequence.
The nth term of the sequence is given by :
[tex]a_n=a+(n-1)d[/tex]
Put n = 5, a = 8 and d = -5 in the above formula
[tex]a_5=8+(5-1)(-5)\\\\=8+4(-5)\\\\=8-20\\\\=-12[/tex]
So, the fifth term of the sequence is -12.
Find the future value if £1500 is invested for 5 years at 8.7% p.a.
Answer:
$2,152.50
Step-by-step explanation:
A = $2,152.50
I = A - P = $652.50
Equation:
A = P(1 + rt)
Calculation:
First, converting R percent to r a decimal
r = R/100 = 8.7%/100 = 0.087 per year.
Solving our equation:
A = 1500(1 + (0.087 × 5)) = 2152.5
A = $2,152.50
The total amount accrued, principal plus interest, from simple interest on a principal of $1,500.00 at a rate of 8.7% per year for 5 years is $2,152.50.
Answer:
£2276.35
Step-by-step explanation:
1500 X (100+8.7/100)^5
A particular strain of a common bacteria replicates itself every 14 minutes. Which of the following does this situation represent?
A.
a function only
B.
a relation only
C.
neither a relation nor a function
D.
both a relation and a function
Answer:
D-both a relation and a function
Step-by-step explanation:
Answer: relation and function
Step-by-step explanation:
Find the common difference of the arithmetic
sequence 13,9,5,
Answer: -4
Step-by-step explanation:
13 - 9 = 4
9 - 5 = 4
so, we can see that it is decreasing by 4 each time.
Answer:
common difference is -4
Step-by-step explanation:
The common difference is the amount we add between terms
13 + d = 9
Subtract 13 from each side
13+d-13 = 9-13
d = -4
Check
9+d = 5
9 + -4 = 5
5= 5
This is true so the common difference is -4
help me out as soon as possible. lmk if you can’t see the photo
Answer:
a.
Step-by-step explanation:
Answer:
SO SHE MADE IT X okay teacher i got u- soooo that x8 because the x stands for 9 inside my math script. and if you make 100 and - 99 ur answer would be 1k
Step-by-step explanation:
What percent is equivalent to 20?
O 5%
O 6%
O 20%
O 25%
Answer:
5%. creo que es la respuesta más correcta.
The diagram shows a right-angled triangle.
9 cm
23°
hcm
What is the value of h?
Give your answer correct to 1 decimal place.
Answer:
Maybe try 23-9. Or maybe the answer is 23, hopefully this helped.
Step-by-step explanation:
Answer:
21.2 cm is the right answer.
Step-by-step explanation:
tan(θ)=o/a
tan(23)=17/x
divided by x on both sides to equal
x(letter) x tan(23)=17
and then on the calculator you type in 17/tan(23)
=21.20267129 cm
to 1 s.f= 21.2 cm
The right triangle on the right is a scaled copy of the right triangle on the left. Identify
the scale factor. Express your answer as a whole number or fraction in simplest form.
Answer:
Option 1 I took the test
Step-by-step explanation:
on
Amanda had 4 pages of math makeup work and 6 pages of reading homework to makeup. If each page for math and reading had 4 questions on it, how many questions did she have to complete in all
Answer: 40 questions
Step-by-step explanation:
There were 4 pages for math so she had:
= 4 * 4
= 16 math questions
There were 6 pages of reading so she had:
= 6 * 4
= 24 reading questions
In total she had:
= 16 + 24
= 40 questions
To the nearest integer, about how many times larger is 20 x 10 exponent 2 compared with 4 x 10 exponent -1?
Answer:
100
Step-by-step explanation:
5 x 10^6 = 5,000,000
vs
5 x 10^4 = 50,000
100
Answer:
5 times greater
Step-by-step explanation:
20÷4 =5 so yea
A sphere Is properly defined as a ball.
true or false
Answer:
A sphere has the same shape as a ball so yes.
please help am trying to turn this work in
Answer:
Angle 3 will be 30 degrees
Step-by-step explanation:
vertical
Answer:
30 degrees
Step-by-step explanation:
Intersecting lines form vertical angles and vertical angles are congruent
Quinn has $31,700 in a savings
account that earns 7% annually.The
interest is not compounded.How much interest will she earn in 3years?
Use the formula i = prt, where i is the interest earned, p is the principal (starting amount), r is the interest rate expressed as a decimal, and t is the time in years.
$
Answer:
she will earn $6,657 in interest in 3 years
–15b + 2b − –7b = –12
Step-by-step explanation:
[tex]\tt{ -15b+2b-(-7b)= -12 }[/tex] ⠀
[tex]\tt{-15b+2b+7b=-12 }[/tex] ⠀
[tex]\tt{-15b+9b=-12 }[/tex] ⠀
[tex]\tt{ -6b=-12 }[/tex] ⠀
[tex]\tt{b=\dfrac{-12}{-6} }[/tex] ⠀
[tex]\tt{ b=2 }[/tex] ⠀
Answer:
b=2Step-by-step explanation:
-15b+2b-(-7v)=-129b-15b=-12-6b=-12b=-12/-6b=2180-90-(3x+x). Find x
Answer: 90-4x
Step-by-step explanation:
You can only simplify this equation
Answer:
90-4x
Step-by-step explanation:
180-90-(3x+x)
90 -(4x)
90-4x
If 6 1/4 of potatoes cost 40.75 how much would one pound cost
Answer 6 dollars and 52 cents
Step-by-step explanation: 6 1/4 = (6.25)
40.75/6.25 = 6.52 per unit price
find the inequality: -3x >15
Answer:
x<-5 is that answer .........
Answer:
x < -5
Step-by-step explanation:
You can divide both sides by -3, and when you divide by a negative in an inequality, you switch the less than to a greater than and vice versa. That means that x < -5.
Two of the angles in a triangle measure 51° and 25°. What must be the measure of the third angle?
Answer:
104°
Step-by-step explanation:
Angles in a triangle add up to 180.
so 180-51-25=104
Hope this helps!:)
Answer: 104°
Step-by-step explanation:
In a triangle, the total or the interior angles will always be 180°
51° + 25° = 76°
180° - 76° = 104°
Therefore, the answer is 104°
I hope this helps!
Given c= -15 and d
-22, what is c - d?
what goes in the white empty boxes? and what did you multiply or divide? HELP!!!
Answer:
1=8
2=16
5=40
6=48
10=80
12=96
Step-by-step explanation:
you have to multiply by 8 with the left numbers and you divide by 8 with the right numbers
4x-y=-3 in standard form
Answer:
4x-y=-3 Ax+By=C it's already in standard formy=4x+3 y=mx+b form
Step-by-step explanation: