Answer:
number is 10
Step-by-step explanation:
let n be the number, then 4 more than the number is n + 4, thus
n(n + 4) = 140 , that is
n² + 4n = 140 ( subtract 140 from both sides )
n² + 4n - 140 = 0
Consider the factors of the constant term (- 140) which sum to give the coefficient of the n- term (+ 4)
The factors are + 14 and - 10 , since
14 × - 10 = - 140 and 14 - 10 = + 4 , thus
(n + 14)(n - 10) = 0 ← in factored form
Equate each factor to zero and solve for n
n + 14 = 0 ⇒ n = - 14
n - 10 = 0 ⇒ n = 10
Since n is a whole number the the required number is 10
2x-1+9x+3=57 solve for X
Answer:
x = 5
Step-by-step explanation:
2x-1+9x+3=57
2x+9x=57+1-3
11x=55
x= 55/11
x= 5
Answer:
x = 5
Step-by-step explanation:
Simplifying 2x + -1 + 9x + 3 = 57
Reorder the terms: -1 + 3 + 2x + 9x = 57
Combine like terms: -1 + 3 = 2 2 + 2x + 9x = 57
Combine like terms: 2x + 9x = 11x 2 + 11x = 57
Solving 2 + 11x = 57
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '-2' to each side of the equation. 2 + -2 + 11x = 57 + -2
Combine like terms: 2 + -2 = 0 0 + 11x = 57 + -2 11x = 57 + -2
Combine like terms: 57 + -2 = 55 11x = 55
Divide each side by '11'. x = 5
Simplifying x = 5
♡ hope it helps♡
Evaluate -2x^2y, if x=-3 and y=-1.
A. -12
B. 18
C. -18
D. 12
Answer:
c.-18
Step-by-step explanation:
follow me and -GOOD LUCK-
what is the slope if the line is 5y= 10x-15
Answer:
slope = 2
Step-by-step explanation:
y = mx + b
M is the slope
5y = 10x - 15
y = 2x - 3
2 is the m in this equation
I hope this helped!
I need help simplifying this 7(3/7−6x)
Answer:
3-42x
Step-by-step explanation:
Debbie's backyard deck cost $56.00 per square meter to build. The deck is 9 meters wide and
9 meters long. How much did it cost to build the deck?
Answer:
$514.00
Step-by-step explanation:
56 x 2 = 112
112 x 4 = 448
448 + 56 - 514
so $514.00 is your answer.
Veronica is given a rectangular piece of paper. If the length of Veronica's piece of paper is represented by x2 + 6x – 2 and the width is represented by 3x - 5, find the area of the piece of paper.
Answer:
3x^3 +13x^2 - 36x + 10.
Step-by-step explanation:
Area = length * width
= (3x - 5)(x^2 + 6x - 2)
= 3x(x^2 + 6x - 2) - 5)(x^2 + 6x - 2)
= 3x^3 + 18x^2 - 6x - 5x^2 - 30x + 10
= 3x^3 + 13x^2 - 36x + 10.
HELP PLEASE I WILL GIVE MOST BRAINLY!!!!!
What are the two answers for this problem? |c - 24| = 7c
Answer:
c = 3 or c = -4
Step-by-step explanation:
answer 1;
|c - 24| = 7c
-7 -7
-6c -24 +24 = 0 +24
-6c = 24
-6/-6 = 24/6
c = -4
answer 2;
|c - 24| = 7c
+7 +7
8c - 24 = 0
8c−24+24=0+24
8c=24
8c/8 =24/8
c = 3
i hope i helped<3
please help! i need help ASAP much appreciated
Answer:
Plz check in step by step
Step-by-step explanation: Hong Kong Island is the second-largest island of the territory, the largest being Lantau Island. Its area is 78.59 km2 (30.34 sq mi), including 6.98 km2 (2.69 sq mi) of land reclaimed since 1887 and some smaller scale ones since 1851.
Convert the fraction into a decimal by dividing
1. 4 / 5
2. 1 / 6
3. 5 / 12
4. 8/11
5. 22 / 95
Step-by-step explanation:
1. 0.8
2. 0.6 repeted
3. 0.146 the 6 is repeated
4. 0.72 repeated
5. 0.23157894..
HURRY WILL GIVE BRAINIEST!!!!!
Simplifies each expression.
A.) 8^-2
B.)1/3^-3
C.)6^12*6^8*6^0
Answers:
a) [tex]\frac{1}{64}[/tex]
b) 27
c) [tex]6^{20}[/tex]
8 mi/h= ft/min helppppp
Answer:
8
Step-by-step explanation:
(x + y + z = 3
-y = x
2z + 3y = 0
What does x and y equal?
Answer:
x=2 and y=-2
Step-by-step explanation:
April is going to the bakery to purchase donuts and cinnamon rolls for the office personnel. She must purchase at least 30 items. She has collected only $30, so total cost must be no more than $30. If d represents donuts that cost $0.75 each and r represents cinnamon rolls that cost $1.25 each, which system of inequalities can be used to represent the region for the number of donuts and cinnamon rolls April could purchase
Answer:
d + r ≥ 30
$0.75d + $1.25r ≤ $30
Step-by-step explanation:
Given the following :
Number of items to purchase = atleast 30
Total cost must be no more than 30
cost of donut (d) = $0.75
Cost of cinnamon (r) = $1.25
Number of donuts and cinnamon to purchase
To total number of items :
Donut + cinnamon ≥ 30
d + r ≥ 30
Cost of items to purchase :
Cost = price per item * number of items
$0.75d + $1.25r ≤ $30
solve for x
choices
30
22.5
45
Answer:
I don't get the question?
Step-by-step explanation:
5 & 6 ? Explain please
Answer:
5. Rational
6. 4.27 Rational, 0.375 Rational,
0.232342345 Rational, √62 Not rational, 13/1 Rational
Step-by-step explanation:
A rational number is an integer, fraction, terminating decimal, or repeating decimal.
An irrational number is a number that cannot be expressed as the ratio of two integers.
Hope this helps :)
Which table does not represent a proportional relationship? Please give an accurate answer and explanation! thank you so much and good luck. whoever I declare brainiest gets 25 points
Answer:
the 2nd one
Step-by-step explanation:
help me 4 + 2p = 10 ( 3/5p - 2)
Point H is on the line segment GI. Given HI=6x, GH=x^2+5x and GI 7x+21. Find the values of x and determine the length of HI.
Answer:
x=3
HI=18
Step-by-step explanation:
Equations
Suppose a segment with endpoints G, I. Somewhere in between lies point H, in such a way that:
GI = GH + HI
Every segment is given as an expression with variable x:
[tex]HI=6x[/tex]
[tex]GH=x^2+5x[/tex]
[tex]GI=7x+21[/tex]
Substituting:
[tex]7x+21=x^2+5x+6x[/tex]
Moving everything to the right side:
[tex]0=x^2+5x+6x-7x-21[/tex]
Swapping sides and simplifying:
[tex]x^2+4x-21=0[/tex]
Factoring:
[tex](x+7)(x-3)=0[/tex]
Solving, we have two possible solutions:
x=-7, x=3
The negative solution is discarded because it would result in negative lengths. Thus the solution is
x=3
Determine the length of HI:
HI=6x=6*3=18
HI=18
BRAINLIEST ANSWER!! I need help ASAP!
Answer:
n = -9.5
Step-by-step explanation:
6n + 15 = -42
6n = -57
n = -9.5
this graph shows how fast the International Space Station travels in orbit around Earth. what is the meaning of the point with an x-coordinate of 2
I can't add two pictures
Answer:
D
Step-by-step explanation:
Answer:
D
Step-by-step explanation:
Sarah buys a shirt on sale at
Jersey's. The original price was
$28, but the shirt is on sale for 30%
off.
If there is a 5% sales tax, how
much did Sarah pay for the shirt?
(Write the answer as a decimal to 2
places.)
Answer:
$20.58
Step-by-step explanation:
Answer:
20
Step-by-step explanation:
divide 28 from 30. 2 can go into 3 ones its 2 so subtract its one bring down 8 then the answer is 2020
28 _______
30
- 2
____
10
what is - I (-10) I - 2
Answer:-2
Step-by-step explanation:
one third divided by five sixths
A. two-thirds
B. two-fifths
C. two-sixths
D. one-fifth
Answer: B
Step-by-step explanation:
Two- fifths
Answer:
The answer is 2/5 (B)
Step-by-step explanation:
1/3 divided by 5/6
To solve, we need to multiply the reciprocal of the divisor (5/6 in this case)
The reciprocal of 5/6 is 6/5
1/3*6/5 = 6/15 which can be reduced to 2/5
The answer is 2/5 (B)
Hope this helps!
please help pleeaasssee
Answer:
10
Step-by-step explanation:
just do 4-18 and u get the answer
Simplify : 5c + 3 – 12c – 8
Answer:
Step-by-step explanation:
-7c - 5
McDowell Movies charges a $10 monthly fee and $4 per movie rental each month. Titan Videos charges a $15 monthly fee and $3 per movie rental each month. When will cost be the same for both?
I NEEDD HELP ON THIS
Answer:
✔️✔️✔️✔️✔️✔️✔️✔️✔️✔️
Classify the number −25.
Answer: a negative integer, rational number, and real number
Step-by-step explanation:
I don’t know exactly what you’re asking but here you go
A company currently has an advertisement that covers a bill board that is 30 ft wide by 70 ft high. The company wants to reduce the same advertisement to fit on a new billboard that is 25ft wide by 40 ft high. What are the dimensions of the largest advertisement that will fix on the billboard without cropping the advertisement
Given :
A company currently has an advertisement that covers a bill board that is 30 ft wide by 70 ft high. The company wants to reduce the same advertisement to fit on a new billboard that is 25 ft wide by 40 ft high.
To Find :
The dimensions of the largest advertisement that will fix on the billboard without cropping the advertisement.
Solution :
Area of original bill board :
[tex]A_i=30\times 70 = 2100\ ft^2[/tex]
Area of new bill board :
[tex]A_f=25\times 40 = 1000\ ft^2[/tex]
Since, new bill board can be completely fitted in original bill board as its length and breadth both are smaller than that.
So, the dimensions of the largest advertisement that will fix on the billboard without cropping the advertisement is equal to 1000 ft².
Hence, this is the required solution.
Slope of (-3,6), (2,6)
Answer:
0
Step-by-step explanation:
Answer:
0/-1 which equals 0
Step-by-step explanation:
I provided a picture explanation
The heights of 200 adults were recorded and divided into two categories.
6' or over
Under 6
Male
14
88
Female
2
Which two-way frequency table correctly shows the marginal freq