Given:
Food = 30 pounds of food per hiker.
Food consumption = 12 pounds of food a day.
No. of hikers = 7
To find:
The equation for the given situation.
Solution:
Let x be the number of days and y be the amount of remaining food.
Total amount is the product of number of hikers and food per hiker.
[tex]\text{Total food}=7\times 30[/tex]
[tex]\text{Total food}=210[/tex]
Food consumption of one day = 12 pounds
Food consumption of x days = 12x pounds
Now,
Remaining food = Total food - Food consumption of x days
[tex]y=210-12x[/tex]
[tex]y=-12x+210[/tex]
Therefore, the required equation is [tex]y=-12x+210[/tex].
Note: Option C is correct if there is -12 instead of 12.
Solve the following equation by completing the square:
x^2 + 4x = 2
Answer:
.
Step-by-step explanation:
Answer:
[tex]x=\sqrt{6}-2,\:x=-\sqrt{6}-2[/tex]
Step-by-step explanation:
[tex]x^2 + 4x = 2[/tex]
[tex]\left(x+2\right)^2=6[/tex]
[tex]x=\sqrt{6}-2,\:x=-\sqrt{6}-2[/tex]
456*43-53(45)................help
Answer: 17223
Step-by-step explanation:
You have to multiply your
Step-by-step explanation:
456×43-53(45)=
19608-53(45)
19608-2385
17223 Answer
Walter scored a 1,285 on a national test in January. He
decided to take the test in March again and scored 1,230.
What is the percent decrease in Walter's test scores?
ROUND TO THE NEAREST HUNDREDTH.
Answer:
4.28%
Step-by-step explanation:
1285 - 1230=55
(55/1285) ×100%=4.28%
0.5 gallons plus 0.5 gallons plus 2 gallons plus 1gallon basicly i need to know how to add gallons.
Answer: 5 gallons
Step-by-step explanation: the gallons are in decimal points. 1/2 + 1/2 + 2 + 1 = 5. the .05 and 1/2 are the same thing. the .5 + .5 equals 1
Mary is applying for a credit card. Which of the following will not determine if she has a high credit limit or not.
A. Credit score
B. Payment history
C. Salary
D. Age
Select the correct answer. which expression is in its simplest form?
whats 2 +2 plss help me i need help
answer choices:
A) 14.1 cm
B) 18.8 cm
C) 37.7 cm
D) 75.4 cm
Answer:
B. 18.8cm
Step-by-step explanation:
Circumference = π x Diameter
The given diameter here is 6cm and we need to use 3.14 for π so:
Circumference = 3.14 x 6
Circumference = 18.84 = 18.8 (1.d.p)
Therefore B is correct.
Hope this helped!
Will give brainist help!!!
Answer:
A
Step-by-step explanation:
What is the name ?
Help please
Answer:
chord
Step-by-step explanation:
A chord of a circle is a straight line segment whose endpoints both lie on a circular arc
Put in order from least to greatest
5.670
56.72
56.27
Answer:
5.670, 56.27,5.72.
Step-by-step explanation:
All you do is pay attention to that decimal and remember that the places where the numbers are present; they are invisible zero so,
56.72 is the same as 56.720000.
It's pretty clear for this question since the numbers are clear so all you do is look at the decimals.
Help me please I’m stuck
Answer:
i woould say but
a
Which expression is equivalent to 4c + 7 -2C - 3?
a. 2c + 4
b. 2c + 10
C. 6C +4
d. 60 + 10
A person hikes 4 miles in 2.5 hours. Find the unit rate in miles per hour.
Answer:
60 miles per hour
Since d=rt, r = d/t = 420 miles/7 hours = 60 miles per hour
Step-by-step explanation:
Answer:
1.6 miles per hour
Step-by-step explanation:
Step one:
The unit rate is the number of miles in 1 hour
given
distance= 4 miles
time= 2.5 hours
so if he hike 4 miles in 2.5 hours
then he will hike x mile in 1 hour
cross multiply we have
x=4/2.5
x=1.6 miles per hours
Therefore the unit rate is 1.6 miles per hour
Answer: 60 miles per hour
Step-by-step explanation:
I will explain more
In the comments
A letter is chosen from the word shown.
BELIEVABLE
Which describes the probability of randomly choosing a consonant?
Answer:
That something unexpected is about to happen.
Step-by-step explanation:
A triangle has one angle that measures 70 degrees. If the other two angles are isosceles, what is the measurement of each of those angles? PLEASE HELP I HAVE TO HAND IN , in 10 minutes!
Answer:
I could be very wrong, but I think 55?
Step-by-step explanation:
bc all angles of a triangle add up to 180, 70-180=110 110/2(bc two isosceles angles are left) makes last two 55
I think
HELP PLEASE WILL CROWN BRAINLIEST!!
The temperature in Calgary at 9 a.m. was – 23 C.
By 11 a.m., it had warmed up by 8 C.
By noon, it had warmed up by another 3 C.
But by 2:00 p.m. it had cooled by 6 C.
What was the temperature in Calgary at 2:00 p.m.?
Answer:
-18 C°
Step-by-step explanation:
Warmed means add cooled means subtract
starting at -23 it warmed by 8 add 8
-15
it warmed by 3 more add 3
-12
then it cooled by 6 subtract 6
-18
Solve the following equation for x.
x2+19x+18=8x
Enter one solution in the first box. If there are two solutions, enter the second solution in the second box.
x =
x =
Answer:
=−2
=−9
Step-by-step explanation:
Please help will give brainliest
Answer:
B
Step-by-step explanation:
It is B because to find the volume you multiply all three values together, which gets you 68.448. I multiplied 9.2x3.1, which got me 28.52, and then I multiplied 28.52 by 2.4 which got me 68.448.
Which word means changing seasons and mild weather?
A elevation
B climate
C current
D temperate
Answer
The answer is climate
Answer:
It would most likely be climate because it sounds like it has something to do with the weather which it does.
Step-by-step explanation:
help please!
1.What is the y intercept of the function?
2.What is the first difference?
3.Write an equation to represent the function given in the table. Remember we write linear functions in y=mx+b form!
Answer:
1.What is the y intercept of the function?
y-coordinate when x = 0, take from the table.
(0, 5)2.What is the first difference?
Difference of y-values. This is the slope
7-5 = 23.Write an equation to represent the function given in the table
Use the first difference and the y-intercept: b = 5, m = 2
y = 2x + 5Which equation represents the slope-intercept form of the line below?
Answer: ( D )
Step-by-step explanation:
They are both positive because in the graph it shows that they are not intercepting in in a negative sign.
2(2x+1)+3(x-2) I need answers
Answer:
4x + 2 + 3x - 6
combine like terms
Group: (4x + 3x) (2 - 6)
7x - 4
Please help! Solve the following system by substitution:
Answer:
C.
Step-by-step explanation:
C= 5 and D= -2.
(4x – 17)
(5x - 1)
What is x?
Answer:
9x-18=90 9x=108 x=12,,,,,,,,,,,,,,,,
A cylinder has a height of 20 millimeters and a radius of 20 millimeters. What is its volume? Use s s 3.14 and round your answer to the nearest hundredth.
Answer:
solution given:
height [h]= 20 millimetres
radius [r]=20 millimetres
π=3.14
now
Volume of cylinder [V]=πr²h=3.14×20²×20=25120mm³is your answer.
Step-by-step explanation:
volume=xr2h
3.14 x20x20
1256mm3
What single decimal multiplier would you use to decrease by 2% followed by a 7% decrease?
How many degrees is angle y
Answer:
y = 39°Steps:
w = 180 - (85+42) = 180 - 127 = 53°
y = 180 - (88+w)
y = 180 - (88+53)
y = 180 - 141
y = 39°
Answer:
y = 39
Step-by-step explanation:
The exterior angle of a triangle is equal to the sum of the 2 opposite interior angles.
x is an exterior angle of both triangles , then
x = 42 + 85 = 127
and
y + 88 = 127 ( subtract 88 from both sides )
y = 39
Mr.davis, the volleyball coach, has 7 outstanding players. He will draw one name out of a jar to decide who stays on the bench. Brianna, one of the outstanding players, wants to know what is the probability of her not playing?
Answer:
7/1
Step-by-step explanation:
There are 7 players if the coach randomly draws a name that determines who stays on the bench there is a 1/7 chance Brianna will stay on the bench because there are 7 people and Brianna is 1 of them
Factorise fully the following x2+2x
Answer:
x(x+2) is the answer
Step-by-step explanation:
x²+2x
x(x+2)