Answer:
x=-2
Step-by-step explanation:
Answer:
1/3x - 3.3 = -4
+3.3 +3.3
1/3x = -0.7
/1/3 /1/3
x = -2.1
check: 1/3(-2.1) - 3.3
-0.7 - 3.3
-4 = -4
correct!
Step-by-step explanation:
90 out of 120 students like pizza. what percent of students did not like pizza?
Answer:
25%
Step-by-step explanation:
90/120=0.75
1-0.75=0.25
0.25x100= 25%
I NEED THE ANSWER ASAP PLEASE
A small dog gets fed 3/4 cups of dog food twice a day. Using d for the number of days and f for the amount of food in cups, write an equation relating the variables. Use the equation to find how many days a large bag of dog food will last if it contains 210 cups of food.
Answer:
f=1.5⋅d or equivalent. The bag will last 140 days since 210÷1.5=140.
Step-by-step explanation:
The equation h = 10d represents the height h (in millimeters) that a plant grows after d days. How tall is the plant after 5 days?
A) 10 millimeters
B) 5 millimeters
C) 50 millimeters
D) 2 millimeters
Answer:
50 millimeters
Step-by-step explanation:
d alone , is always 1. Just like any other variable. To find the hegiht you need to do days x 10.
After 5 days its mental math.
just do 5 x 10 and do not forget to add millimeters to the end!
please help asap....
Answer:
(3x-2)(2x+3)
Step-by-step explanation:
1
1 point
How many square meters of carpet are needed to cover the
hallway and living room?
6 m
3.2 m
4.2 man
Living
Room
1.5 m
Hallway
Answer:
30m squared carpet is needed to cover the hallway and the living room.
Step-by-step explanation:
Living room area
6 × 4.2 = 25.2
Hallway area
3.2 × 1.5 = 4.8
Total area
25.2 + 4.8 = 30m squared
Find the "a" value so that the equation ax^2-10x + 25 = 0 has two equal, real roots.
Answer:
Step-by-step explanation:
Please help and please show your work i need to know how to do this please I beg
Answer:
so first do the top one so that would be 7*2 which is 14
and then the bottom which is 5*12 so that would be 60.
60+14 is 74!! 74sq in!
Step-by-step explanation:
Rex puts $5,000 in a savings account with a simple
interest rate of 2.5%. How much interest does Rex
carn after 2 year's
Answer:
Rex earns $250 in interest after 2 years.
Step-by-step explanation:
Can someone please help me with this? Mhanifa? I will mark brainliest
Answer:
Option C 20
GOOD LUCK FOR THE FUTURE! :)
does anyone know this ?
Answer:
an = 24(2/3) - n
Step-by-step explanation:
hi I need HELP with this question
Answer:
B
Step-by-step explanation:
calcule o valor x na equação do 1° grau: 16x-21=x+9
Answer:
16x-21=x+9
15x=30
x=2
eu acho que e nao sei mais o outro cara respondeu ali
Step-by-step explanation:
An artist makes paperweights in the shape of square pyramids. The paperweights are filled with yellow sand. How much sand does the artist need to fill this paperweight?
Answer:
Step-by-step explanation:
0.2(3k+1)=-0.4-(-0.2-0.1K)
Answer:
k=−0.8
Step-by-step explanation:
Start with the equation: 0.2(3k+1)=-0.4-(-0.2-0.1K)
Use distributive property on each side of the equation. For the left side, distribute 0.2 into 3k and 1, and for the right side, distribute -1 into -0.2 and -0.1k. (We use a -1 because the negative sign on the outside of the parenthesis is equivalent to -1)
(0.2)(3k) + (0.2)(1) = 0.6k + 0.2
(-1)(-0.2) + (-1)(-0.1k) = 0.2 + 0.1k
New equation: 0.6k + 0.2 = -0.4 + 0.2 + 0.1k
Now we can combine like terms on the right side. (-0.4 and 0.2)
0.6k + 0.2 = 0.1k - 0.2
Now to get rid of k on one side, we can subtract 0.1k from the right side.
(0.6k - 0.1k) + 0.2 = (0.1k - 0.1k) - 0.2
0.5k + 0.2 = -0.2
Now we need to get 0.5k by itself, so we'll subtract the 0.2 on both sides.
0.5k + (0.2 - 0.2) = (-0.2 - 0.2)
0.5k = -0.4
To get k by itself, we must divide both sides by 0.5.
(0.5k / 0.5) = (-0.4 / 0.5)
k = -0.8
50% of 50% of x. PLEASE HELP I WILL GIVE BRAINLIEST
Answer:
25. 50 percent of 50 is 25 divided by 2.
Step-by-step explanation:
step1:Our output value is .50.
step2:we represent the unknown value with x
step3: from step1 above,.50=100%
step4: similarly,x=50%
step5: This results in a pair of simple equation:
.50=100%(1)
x=50%(2)
step6:by dividing equation 1 by equation 2 and noting that both the RHS(right hand side)of both equations have the same unite(%);we have
.50. 100%
____. = ____
x. 50%
step7: again,the reciprocal of both sides gives
x. 50
___ =. ___
50. 100
°x=0.25
therefore,50%of.50 is 0.25
Evaluate 10f+⅔(4d+7)-8
Answer:
9.3 simplified should be 3 if this isn't the answer then I don't know what is anymore because I just wasted my time if its wrong ;-;
Step-by-step explanation:
also I cant put the explanation sorry it says it has a link or inappropriate words in it when it doesn't.
9.3 divided by 3 is 3 so sense that isn't a fraction or anything i guess 3 is the answer in not to sure-
Answer:
8/3d +10f +-10/3
Step-by-step explanation:
Expression Name Expression
E 3.8 ⋅ 6.8
F 7 ⋅ 0.5
G –8 ⋅ 4∕7
H 9 ⋅ (–3)
The table above shows four numeric expressions. Which expression is an integer when it's evaluated?
A) E
B) H
C) G
D) F
The expression that will be an integer when it is evaluated is given by:
B) H.
Which expression is always an integer value?When two integers are multiplied, the result is always an integer.
In this problem, expression H has the multiplication of two integers, 9 and -3, hence option B is correct.
The other expressions have rationals involved in the multiplication, hence the result of the expression will be a rational.
More can be learned about expressions and integers at https://brainly.com/question/2973027
#SPJ1
I only have 70 pointsssssssss
Answer:
5
Step-by-step explanation:
The equation given is put in slope intercept form
y = mx + b
where m = slope and b = y intercept
the number before the x represents the slope (m) , Because 5 is the number before the x, 5 is the slope
Answer:
5
Step-by-step explanation:
Part B: If you were to randomly sample 25,000 people to see if they are
left-handed or right-handed, approximately how many would you expect
to be right handed? (number answer only) *
Answer:
22500 people
Step-by-step explanation:
because about 90 percent of people are right handed whole only 10 percent are left handed
f(x)= 2x +6 , vertical shrink by a factor of 1/2
Answer:
g(x) = x+3.
Step-by-step explanation:
i hope this helps :D
When a function is shrunk vertically, the function has undergone a form of transformation.
The resulting function when [tex]f(x) = 2x + 6[/tex] vertically shrink by 1/2 is [tex]f'(x) = x + 3[/tex]
Given that:
[tex]f(x) = 2x + 6[/tex]
[tex]k = \frac 12[/tex] --- shrink factor
When a function is shrunk vertically, the rule of transformation is:
[tex](x,y) \to (x,ky)[/tex]
So, we have:
[tex]f'(x) = k f(x)[/tex]
The new function becomes
[tex]f'(x) = \frac 12 \times (2x + 6)[/tex]
[tex]f'(x) = x + 3[/tex]
Hence, when [tex]f(x) = 2x + 6[/tex] is vertically shrunk by 1/2, the new function is [tex]f'(x) = x + 3[/tex]
Read more about transformations at:
https://brainly.com/question/11709244
A price used to be £40, but is now £50.
What is the percentage increase?
Answer:
25%
Step-by-step explanation:
MP= 40
SP= 50
Change(increase) = 10
Change (increase) precentage = 10 / 40 x 100 = 25%
I hope im right!!
Answer:
25 percent
Step-by-step explanation:
£40 is the old price and £50 is the new price. In this case we have a positive change (increase) of 25 percent because the new value is greater than the old price.
Hope it helps
Please mark me as the brainliest
Thank you
Is the following shape a square? How do you
know?
Answer:
B
Step-by-step explanation:
Answer:
no the sides are not congruent aka B
Step-by-step explanation:
plsss someone help i need help with this
Answer:
-3/5 + 7 = 32/5 or 6.451 + -19= 32-321 + -85= -406Step-by-step explanation:
Alyssa had 191 dollars to spend on 6 books. after buying them she had 17 dollars. how much did each book cost?
Answer:
29$
Step-by-step explanation:
191-17=174
174/6=29
Answer:
$29
Step-by-step explanation:
Find the range, please. :)
3 -9 7 -1 5 -4 2
a. 8
b. -1
c. 2
d. 16
Question 1
(n - 3)(2n + 6)
18n2 - 45n + 25
Answer:
36n^4−324n^2−45n+25
Step-by-step explanation:
Solve 2x + 20 = 6x – 12*
Answer:
x = 8
Step-by-step explanation:
Given
2x + 20 = 6x - 12 ( subtract 2x from both sides )
20 = 4x - 12 ( add 12 to both sides )
32 = 4x ( divide both sides by 4 )
8 = x
=> 2x + 20 = 6x - 12
=> 20 + 12 = 6x - 2x
=> 32 = 4x
=> x =32/4
=> x = 8Sam had 8819 grams of salt. He mixed 1715 grams of salt into a pot of soup he was cooking. Before serving the soup, he added 1158 grams of salt. About how much salt does Sam have left? Choose the best estimate.
Answer:
6000
Step-by-step explanation:
2000+1000=3000
9000-3000=6000
Side note: I'm not sure if this is 100% correct because you didn't give the choices
Answer:
60
Step-by-step explanation:
Item 15 Fill in the blank so that the ordered pair is a solution of y=12x+2. ( , 14)
Answer:
(1, 14)
Step-by-step explanation:
If you substitute the 14 in;
14 = 12x+2
-2 -2
12 = 12x
/12 /12
1 = x
Isaiah earns $60 per week mowing lawns in the summer and shoveling driveways in the winter. He invested $220 in equipment. How long will it take him to earn $860? Find the equation and solve.
Answer:
18 weeks
Step-by-step explanation:
Create an equation where x is the number of weeks he works
60x - 220 will represent his profit, since he gets $60 a week but spent $220 in equipment.
Set this equal to 860, then solve for x, to find when he will earn $860
60x - 220 = 860
60x = 1080
x = 18
So, it will take him 18 weeks to earn $860