Answer:
[tex]x^2+4x-5[/tex]
Step-by-step explanation:
Zeros of a quadratic equation are -1 and 5.
Sum of zeros = -1 + 5 = 4
Product of zeros = (-1)(5) = -5
The quadratic equation will be :
[tex]x^2+(\text{sum of zeros})x+\text{product of zeros}\\\\=x^2+4x-5[/tex]
So, the required quadratic equation is [tex]x^2+4x-5[/tex].
Eight bottles of soda and four bags of chips cost $16. Six bottles of soda and 7 bags of chips cost $14. How much does a bottle of soda cost? How much does a bag of chips cost?
Answer: soda 1.75 dollars and chips is 0.50 dollars
Step-by-step explanation:you have to work out the question like a simultaneous equation so key s=soda and c=chips
8s+4c=16
6s+7c=14 make chips equal
56s+28c=112
24s+28c=56 Take the equations away
32s=56
S=56\32
S=7/4
S=1.75 sub that answer in the first equation
8*1.75=14
14+4c=16
4c=2
C=0.5
The temperature at 6:00 pm was 15 degrees Celcius. The temperature dropped 2 degrees Celcius per hour. What was the temperature at 4:00 am
Answer:
-5 Celsius
Step-by-step explanation:
You find the hours between which is 10 then you multiply 10 to 2 and then subtract
-2( x - 3 ) = 8x -3( 5 + x )
find the value of x
Answer:
0.45
Step-by-step explanation:
a boat travels 36 miles in one hour. what is it’s speed in miles per minute
Answer:
What they said
Step-by-step explanation:
The subtotal for a TV was $1,029.99. What does that mean?
Which expression is not equivalent to the other three?
O 2x + 2+ 2x + 3x - 8
O 4 + 7x - 2
O-2 + 5x + 2x - 4
O ex-X-6
9514 1404 393
Answer:
B. 4 +7x -2
Step-by-step explanation:
The simplified values of the expressions are ...
7x -67x +27x -67x -6The second expression listed is not equivalent to the others.
Answer:
It's B. 4 + 7x - 2
Best of luck love
The high for yesterday was 90°F, today the high is 78°F. What is the percent decrease in the
temperatures?
Answer:
The temperature from yesterday to today decreased by 12 degrees fahrenheit.
Step-by-step explanation:
Ummm... it's true :)
what is the value of angle k
Answer:∠k = 121°
Step-by-step
Exterior Angle Theorem:
The measure of an exterior angle is equal to the sum of the two remote interior angles.
Add 31° and 90° to get ∠K
A local school donated canned goods to help the community. Cans were packed into boxes each weighing 16.4 pounds. The volunteers packed 9 boxes. How many total pounds of food did they collect? A. 97.6 B. 147.6 C. 976 D. 1,476
Answer:
147.6 pounds of foodStep-by-step explanation:
Each box weighed 16.4pounds, if the volunteers packed 9 boxes, we need to calculate the total pounds of food collected. Using the equality postulate;
1 box = 16.4 pounds
9 boxes = x pounds of food
Cross multiply;
1 * x = 9 * 16.4
x = 147.6 pounds of food
Hence the volunteers collected 147.6 total pounds of food
I need help with this problem
Answer:
in this case you can use protector also but
there is another way
Step-by-step explanation:
as we know sum of a triangle is 180 degree
so let's D= 2x,x
35+x+2x=180
3x+35=180
3x=180-35
3x=145
x=145÷3
x =46.06
Whats 2/3 divided by 4
Answer:
(2/3) / 4 = 1/6 or 0.16666
Step-by-step explanation:
need help asap please!!
Answer:
Step-by-step explanation:
Your worth it love u
What is the slope of the line through (−1,−7) and (3,9)?
Answer:
The slope is 4.
Step-by-step explanation:
Point slope form is y-y1 over x-x1. I put the coordinates in like this.
9-(-7) over 3-(-1) so thats 9+7 over 3+1. 16 over 4 is 4.
Answer:
The answer is 2
Step-by-step explanation:
A school assembly had 25 students in attendance, and 20% of them were first-graders. How many first-graders were at the assembly?
Answer:
5
Step-by-step explanation:
20%=0.2
25 x 0.2 = 5
what is the slope of this equation? 6x+3y=24
Answer:
Slope of the given equation is
M = 8
What value of x satisfies the equation x/4 + x/2 =9
"12" is the correct value of "x" which satisfies the given equation.
The given equation is:
→ [tex]\frac{x}{4} +\frac{x}{2} =9[/tex]
By taking L.C.M, we get
→ [tex]\frac{x+2x}{4}= 9[/tex]
→ [tex]\frac{3x}{4} =9[/tex]
By applying cross-multiplication, we get
→ [tex]3x=36[/tex]
→ [tex]x = \frac{36}{3}[/tex]
→ [tex]= 12[/tex]
Thus the above is the right answer.
Learn more about equation here:
https://brainly.com/question/1054939
Last month you spend $30 on clothing this month you spent 160% of what you spent last minute set up a proportion to model this situation how much did you spend this month
Answer: See explanation
Step-by-step explanation:
From the question, we are informed that last month $30 was spent on clothing and that this month, 160% of what was spent last month.
The equation to to model this situation will be:
= 160% × $30
= 160/100 × $30
= 1.6 × $30
= $48
That means $48 will be spent this month.
what is the reciprocal of 2 1/2
Answer:
2/5
0.4
Step-by-step explanation:
Answer:
0.4
Step-by-step explanation:
To celebrate the first day of school, Reagan brought in a tray of caramel brownies and walnut brownies. The tray had a total of 20 brownies, of which 10% were caramel. How many caramel brownies did Reagan bring?
Answer:
2 were caramel
Step-by-step explanation:
if there perimeters are the same 8x (2) = (4x+10) 14
Answer:252
Step by step explanation:
db
Hey uhm.. im not super good at math so i need help with this : 0.45/4.2 = x/14 solve for x
Answer:
x= 1.5
Step-by-step explanation:
Maura is going on a plane. She can't have a carry-on backpack that weighs more than 10 pounds. She weighed the items she wants to pack on a sensitive scale: book: 5.142 pounds, jacket: 3.6 pounds, backpack: 1.28 pounds. What is the total weight of these items? If all of these items are in her backpack, can she take all of these things?
Answer:
2.098 pounds total these pounds
What is the value of y in the equation 2(4y − 1) = 6? (4 points) a 0 b 1 c 6 d 8
Answer:
B; 1
Step-by-step explanation:
divide both sides of the equation by 2
4y-1=3
move the constant to the right
4y=3+1
calculate (add the numbers)
4y+4
divide both sides by 4
y=1
Answer:
b
Step-by-step explanation:
What is the area of △MNP?
A. 40 m2
B. 60 m2
C. 68 m2
D. 127.5 m2
answer is B. 60 m2
Step-by-step explanation:
17²=15²+MP²
289=225+MP²
289-225=64
So... MP²=64.... MP=8
8×15= 120
120÷2=60
Help will get brainliest
The price of apples is $3.60 for 3 pounds. Write the price as a unit rate.
Answer:
B
Step-by-step explanation:
Answer:
B.
Step-by-step explanation:
Adam currently runs about 40 miles per week, and he wants to increase his weekly mileage by 10%. How many miles will Adam run per week?
it would be 50miles i think or it would be 44
An unbalanced force causes a change in _________________ or _________________________.
50 POINTS!
A balanced force ____________________________________. It has a net force of _______________.
The UNIT for force is the _______________________________. It is abbreviated ________.
Answer:
What?
Step-by-step explanation:
Students at Mendel Middle School are planning a fair for their school's fundraiser. Liam volunteers to help plan the event. The first month, he volunteered for x hours. The next month, he volunteered for 1 2/3 times as many hours as he had the first month. If he volunteered for a total of 40 hours, how many hours did he volunteer during the first month? Write an equation to represent the situation and solve.
Answer:
15 hours
Step-by-step explanation:
[tex]x[/tex] is the number of hours that Liam volunteered in the first month
The next month he volunteered [tex]1\dfrac{2}{3}[/tex] times the time he volunteered the first month.
Total time he volunteered in the two months is 40 hours so
[tex]x+1\dfrac{2}{3}x=40\\\Rightarrow x+\dfrac{5}{3}x=40\\\Rightarrow \dfrac{3x+5x}{3}=40\\\Rightarrow x=\dfrac{40\times 3}{8}\\\Rightarrow x=15[/tex]
Time he volunteered in the first month is 15 hours.
Solve the inequality: 1 < x-2<5
O [3,7]
O (3,7)
O [7,3]
O (7,3)
Answer:
3,7
Step-by-step explanation:
Answer:
(3, 7 )
Step-by-step explanation:
Given
1 < x - 2 < 5 ← add 2 to each interval
3 < x < 7
Since x cannot equal 3 or 7 then use parenthesis for limits, that is
solution is (3, 7)