Twice the sum of x
and 5 equals 3.
⇛2x + 5 = 3
⇛2x = 5 - 3
⇛2x = 2
⇛x = 2/2
⇛x = 1
Answer:
1
Step-by-step explanation:
some exersise books have to be arranged in piles with 10 or 15 or 20 books per pile . what is the least number of books needed to do this?
Answer: 45 books?
Step-by-step explanation:
10+15+20
=45
Find the dimensions of a rectangle whose perimeter is 52 m and whose area is 160 m (2)
Answer:
10, 16
Step-by-step explanation:
List the factors of 160.
1 × 160 = 160
2 × 80 = 160
4 × 40 = 160
5 × 32 = 160
8 × 20 = 160
10 × 16 = 160
(there are more, but we don't need them)
Check to see which factors can be added together to make 26, half of 52.
10 and 16 make 26.
That's the answer!
I hope this helps!
pls ❤ and mark brainliest pls!
6(m-6)+2<20
Plz help math xl
Answer:
m<9
Step-by-step explanation:
Step 1: Simplify both sides of the inequality.
6m−34<20
Step 2: Add 34 to both sides.
6m−34+34<20+34
6m<54
Step 3: Divide both sides by 6.
6m /6 < 54 /6
m<9
Hope this helps <3 Comment if you want more thanks and be sure to give brainliest (4 left) <3
Simplify (ab)2 + (b3 - a2) if a = -2 and b = 4
Step-by-step explanation:
(-2*4)2+(4×3--2×2)
(-8)2+(12--4)
-16+16
=0
hope this helps
Answer:
124
Step-by-step explanation:
(ab)^2 + (b^3 - a^2)
Let a = -2 and b = 4
(-2 *4)^2 + (4^3 - (-2)^2)
Parentheses first
(-8)^2 + (4^3 - (-2)^2)
Then the exponents in the parentheses
(-8)^2 + (64 - 4)
Subtract in the parentheses
(-8)^2 + (60)
Exponents
64 + 60
124
An architectural drawing lists the scale as 1/4" = 1'. If a bedroom measures 3 1/2" by 5 1/4" on the drawing, how large is the bedroom?
A. 20 ft by 30 ft
B. 7ft by 10.5 ft
C. 14 ft by 21 ft
D. 10 ft by 15 ft
Answer:
C. 14 ft by 21 ft
Step-by-step explanation:
First you want to set up an equation:
3 1/2" over x' = 1/4" over 1'
7/2 = 1/4x
14' = x
Next, do the same thing for the other side of the drawing (5 1/4")
5 1/4" over y' = 1/4" over 1'
21/4 = 1/4y
21' = y
So the answer is 14 ft by 21 ft (C)
Solve the inequality 5x < 16 +x.
x < 1/4
x>1/4
x<4
x>4
Answer:
[tex]x<4[/tex]
Step-by-step explanation:
[tex]5x<16+x[/tex]
[tex]5x−x<16[/tex]
[tex]4x<16[/tex]
[tex]x < \frac{16}{4} [/tex][tex]x < 4[/tex]
Hope it is helpful....Answer:
x<4 is the answer
Step-by-step explanation:
M angle a=40° then m angle b=?
Answer:
not enough info
Step-by-step explanation:
Simultaneous equation 2x-y=-1,x-2y=4 solve graphically
Answer:
y= - 1.4
x= 0.2
Step-by-step explanation:
2x-Y= -1
x-2y=4
does ax + by + c = 0 represent an equation of line, if a = b = 0?
Step-by-step explanation:
it will not represent the equation of a line since there's no slope
9514 1404 393
Answer:
no
Step-by-step explanation:
The equation becomes 0 = 0. This is a truism, valid for any variable values.
It is not the equation of a line.
ASAP!!! PLEASE
A pair of equations is shown below: y = 2x − 1 y = 4x − 5 Part A: In your own words, explain how you can solve the pair of equations graphically. Write the slope and y-intercept for each equation that you will plot on the graph to solve the equations. (6 points) Part B: What is the solution to the pair of equations? (4 points)
Step-by-step explanation:
526 133 3821
P: 12345
j _o _I _n g _I _r l
o. n z-oo-o-m
amusement park is 1.50$ for children and $4 for adults. on certain day 220 people entered the park, and the admission fee collected totalled 630.00. how many children and how many adults were admitted? write and use an equation to solve
230.000 childrenㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤ
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ㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤ
ㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤ
ㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤ
ㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤ
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ㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤ
Answer:
230 children
Step-by-step explanation:
If an = 2n - 8, then which one is not a term of the sequence? ( an means nth term)
a) 13
b) 16
c) 204
d) 198
Answer:
13 is answer
Step-by-step explanation:
hope it helps
NEED ANSWER ASAP‼️
Which of the following functions has a restricted domain?
Answer:
ln(x - 3).
Step-by-step explanation:
f(x) = ln(x - 3)
For ln x, x must be > 0
so for ln(x - 3) , x must be > 3.
39 3,822 Whats the answer
Answer:
The answer is 98
Step-by-step explanation:
Can I get branly plz and hope this help
Please help me!!! It is urgent. I added 2 more points to this, so please help!
Find x.
A. 11√42/2
B. 22√7
C. 11√42
D. 22v42/3
The hanger diagram models the equation 2(n + 7) = 24. What could be the
first step in using the diagram to find the value of n? What could be the first
step reasoning about the equation to find the value of n? How are these
steps the same or different?
Please help
Step-by-step explanation:
first of all you times every number with two 2(n-7) then collect like terms then divide
Enter the values for the variables that give the correct simplified expressions, x=>=0; sqrt(50x ^ 2) = sqrt(25 - 2x ^ 2) = 5x * sqrt(b); b =; sqrt(32x) = sqrt(16.2x) = e * sqrt(2x); c =; sqrt(38n) = sqrt(8 * 2 * pi) = e * sqrt(2n); e =; sqrt(72x ^ 2) = sqrt(36 * 2 * x ^ 2) = gx * sqrt(2); g =
Answer:
b=2
c=4
e=3
g=6
Step-by-step explanation:
Which is the correct graph of the inequality y > 2x + 1?
SHOW HOW YOU KNOW
Answer:
the answer is a
A (top left corner)
Sixteen increased by twice a
number is -56. Find the number.
Answer:
increased = addition
twice = multiply by 2
is = equals
a number = x
16+2x=-56
subtract 16 from both sides
2x=72
divide by 2
x=36
Step-by-step explanation:
mark me a brainlistPls help if u only know the correct answer!! Thanks!! :))
Answer:
3.5, 4.2
Step-by-step explanation:
reflect make it not negative and its on y axis so y not affected
Solve the equation sin(x° − 20°) = cos(42°) for x, where 0 < x < 90. A. 22 B. 28 C. 62 D. 68
[tex] \sin(x - 20°) = \cos(42°) [/tex]
[tex] \sin(x - 20°) = \sin(90° - 42°) [/tex]
[tex] \sin(x - 20°) = \sin 48°[/tex]
[tex]x - 20° = 48°[/tex]
[tex]x = 48° + 20°[/tex]
[tex]x = 68°[/tex]
______________________________■ HOPE IT HELPS YOU DEAR!!!______________________________Answer:68
Step-by-step explanation:
please help!! this is geometry
Step-by-step explanation:
1 and 3 are complimentary angles, meaning 1+3 = 180 degrees.
in the same way 1 and 2 are complimentary angles, 1+2 = 180, => 2 ≈ 3
and for 2 and 4 the same => 1 ≈ 4
3 and 5 are complimentary angles, 3+5 = 180 degrees, => 1 ≈ 5.
7 and 8 are complimentary angles, 7+8 = 180 degrees, => (given that 1 ≈ 7 and therefore ≈ 4) 8 ≈ 2 ≈ 3
6 and 8 are complimentary angles, 6+8 = 180 degrees, => 6 ≈ 7 ≈ 1
and with 1≈5 and 1≈6 we know 5≈6.
Determine if the expression 464 +c+ cº is a polynomial or not. If it is a polynomial,
state the type and degree of the polynomial.
Answer:
I wish I could help but I'm not sure
You are driving 2760 miles across the country. During the first 3 days of your trip, you drive 1380 miles. If you continue to drive at the same rate each day, how many days will the entire trip take? Show your work and circle your answer.
The entire trip will take 6 days.
(Encircle this answer, as said on the directions)
Step-by-step explanation:
We know that the first three days of the trip, we traveled 1380 miles.
Find the UNIT RATE of MILES PER day:
1380/3 = 460
Unit rate = 460 miles per day
If we were to drive at this (460 mi per day) rate EACH day and the whole journey takes 2760 miles across the country.
FInd the NUMBER of DAYS of the ENTIRE TRIP:
2760/460 = 6
It will take us 6 days to drive to the destination.
Find the area of the shaded regions.
Answer:
A = 27π cm² or about 84.8 cm²
Step-by-step explanation:
Area of a full circle is πR²
As there are four right angles making up a 360° turn, and the missing piece is one of those four, there are ¾ of a circle remaing
A = ¾πR² = ¾π6² = 27π cm² or about 84.8 cm²
Need help ASAP plz
Answer:
C) postulate
An axiom or a postulate is an accepted statement of fact.
OAmalOHopeO
Answer:
Im pretty sure its definition
What is the answer to this question +8+(+4)
Answer:
12 is the answer of this questions.
Step-by-step explanation:
Thank you for you question.
What is the volume of the cone to the nearest whole number?
20,520pi cm3
43,320pi cm3
86,640pi cm3
136,094pi cm3
[tex] \large\begin{gathered} {\underline{\boxed{ \rm {\red{Volume \: of \: Cone \: = \: \pi \: {r}^{2} \: \frac{h}{3} }}}}}\end{gathered}[/tex]
r represents radius of coneh represents height of coneheight of cone is 90 cmradius of cone is diameter / 2 ⇛76/2 = 38
⇛radius = 38 cm
Solution[tex]\bf \Large \longrightarrow \:π \: × \: (38 \: cm)² \: × \: \frac{90 }{3} [/tex]
[tex]\bf \Large \longrightarrow \: \pi \: \times \: \:1444 \: {cm}^{2} \: \times \: \cancel\frac{90}{3} \: \: ^{30 \: cm} [/tex]
⇥ 43,320 π cm³
Option ( B ) is the correct answer
PLS HELP ME ON THIS QUESTION I WILL MARK YOU AS BRAINLIEST IF YOU KNOW THE ANSWER PLS GIVE ME A STEP BY STEP EXPLANATION!!
A sample of 500 U.S. teachers are asked to express their opinions on standardized testing for their students. The population in this study is _______________.
A. all U.S. students
B. standardized tests
C. all U.S. teachers
D. the 500 U.S. teachers
Answer:
Option A
Step-by-step explanation:
Dont let the sample of 500 teachers fool you the 500 teachers opinion is on their students standardized testing experience. In this case the students are the test subjects(population).
