Jackie runs and rides her bike. She runs 6 miles an hour. She bikes 18 miles an hour. Last week she ran and bikes a total of 216 miles. It took her 16 hours. How many hours did Jackie run and bike last week. Show your work
Answer: she bikes for 10 hours and runs for 6
Step-by-step explanation: suppose that x equals the amount of hours she runs and y equals the amount of hours she bikes.
6x+ 18y=216
x+y=16
(This is your system of equations)
(Starting with the second equation, x+y=16)
y=-x +16 (move x to the other side by transposition)
Now that you have something that equals Y you plug it in to the other equation:
6x+18(-x+16)=216
(Start solving)
6x-18x+288=216 (used distributive property)
-12x+288=216 (Combine like terms)
-12x=-72 (use transposition again)
x=6 (divide to get x by itself)
Now you plug in the value of x into your equation for the value of “y”, y=-x+16,
Y=-6+16 (plugged in the value of x)
Y=10 (solved the equation -6+16)
Simplify the expression below.
15+x-10
Answer:
x+5
Step-by-step explanation:
15+x-10=x+5
17
Two boys are in a weight lifting contest to see who is stronger. Matt lifts 500 pounds, Jamie lifts 2000 newtons.
Who is stronger? Show what you did to get your answer.
[IN=4.480]
Answer:Matt
Step-by-step explanation:
this is Jamies weight
449.618 Pounds force (lb)
Find the sum of 3876, 9828 and 5030
3876+9828+5030= 18734
Answer:
18,734
Step-by-step explanation:
just add them all
3876
9828
+ 5030
---------
18,734
PLEASE HELP IM IN TENSION RIGHT NOW I WANT TO FINISH STUDYING MATHS PLEASE HELP!!!
1. Find the volume of a cube with a side of 9 cm.
2. Find the perimeter of a rectangle whose length is 4
cm and breadth is 3 cm.
3. Find the area of a square of side 11 m.
4. Find the area of a rectangle that is 14 m long and 5
m wide.
5. Find the perimeter of an equilateral triangle with
side 15 cm.
Answer:
1. The volume is 729 V = 729 a Edge 9cm. V=a3=93=729cm3
2. perimeter =2(L+w) length 4cm width positive
3. Area =121m2. a Side 11cm. A=a2 =112=121m2
4. A = length and width
5. Perimeter =45 . a side 15cm. P=3 a=3.15=45cm
Step-by-step explanation:
Make a, the subject of 3a-b=a+7
Answer:
a = (b+7)/2
Step-by-step explanation:
3a - b = a + 7
2a - b = 7
2a = b + 7
a = b+7/2
Find the quotient. 42j4k2 ÷ (-3j3k)
Answer:
(-14) (4/3k) = -56k/3
Step-by-step explanation:
42/-3 = -14
j/j = 1, so j "cancels"
4k²/3k = 4/3k
Answer:
-14jk
Step-by-step explanation:
Slope that is passing through (3,5) and (0,-7)
Answer: 4
Step-by-step explanation:
Slope: [tex]\frac{y_{2} -y_{1} }{x_{2}- x_{1} }[/tex]
y₂ = -7
y₁ = 5
x₂ = 0
x₁ = 3
[tex]\frac{-7 -5 }{0- 3 }=\frac{-12}{-3} = \frac{4}{1} = 4[/tex]
Slope: 4
(-2,0) lies on the graph of the equation y = |x-1| + 3.
Answer:
Yes true i tried it out
If you know the answer please let me know :)))
Answer:
I think the answer is A.
Step-by-step explanation:
Have a good day ;-).
and please give me brainliest if you can.
hat is the 4th equivalent fraction to 1/11
Answer:
4/44 i think
Step-by-step explanation:
A worker is paid Rs 1110 for 6 days. If he told wage during a month is Rs 4625, for how many days did he work?
Worker work for =25 days and he paid Rs.4625.
Step-by-step explanation:
From the question,
Worker is paid Rs.1110 for =6 days
Worker is paid Rs.1 for =(6/110) days
Worker is paid Rs.4625 for =(6/1110)×(4625) days
=25 days
please help me ASAP this is very important explain for brainlist.
Answer:
68%
Step-by-step explanation:
17 divided by 25 = .68
what is the measure of angle EXF
Answer: i don't know
Step-by-step explanation:
Answer:
30
Step-by-step explanation: because 3×10 equals 30
Round 23.542 to the nearest tenth.
Answer:
23.5
Step-by-step explanation:
Answer:
23.5
Step-by-step explanation:
Remember...
5 or more? raise the score, 4 and below let it rest
The number in the tenths place, in this case, is 5 and the number next to it is 4, and since 4 is less than 5, you do not round 5 up to 6, you simply leave it alone!
*WILL GIVE BRAINLIEST*
Can someone please explain how I get the answer to this? I just need an explanation/answer, please.
An isosceles triangle has an angle that measures 132°. Which other angles could be in that isosceles triangle? Choose all that apply.
A: 132
B: 63
C: 24
D: 73
Answer:
option C
24
Step-by-step explanation:
if I m not wrong then this is the ans
hope it helps u
Sumaya is using two different strings of Christmas lights to decorate her house.one string flashes every 10 seconds.the other one string flashes every 15 seconds.when Sumaya turns on the lights they flashes at the same time.work out how long it will be before they flash again at the same time.use the LCM to help you work out your answer
Answer: 30 seconds
Step-by-step explanation:
From the question, we are informed that one string flashes every 10 seconds while the other one string flashes every 15 seconds.
The number of minutes that it'll take before they both flash again at the same time will be gotten by calculating the LCM of 10 and 15. This will be:
10 = 10, 20, 30, 40, 50 ...
15 = 15, 30, 45, 60, 75 ....
We can see that the lowest common multiple of 10 and 15 is 30. Therefore, the answer is 30.
They'll both flash again at same time in 30 seconds.
The sum of two numbers is 54.The smaller number is 22 less than the larger number.what are the numbers?
Answer:
x=16 y=38
Step-by-step explanation:
x+y=54.......equation 1
x=y-22........ equation 2
substitute
y-22+y=54
2y-22=54
2y=54+22
2y=76
y=76/2
y=38''
x=y-22
x=38-22
x=16''
Plz help me I’ll give you brainlist I just really need help!!!
Answer:
4 1/10 , 103/25 , 4.763 , 4.76
Answer:
Step-by-step explanation:
40 1/10<103/25<4.76<4.763
A recipe calls for 1/4
cup of milk for every 1 1/2
cups of flour. How many cups of flour will you need for 1/2
cup of milk?
Answer:
3 cups flour
Step-by-step explanation:
set up a proportion and cross-multiply:
1/4 = 1/2
3/2 f
1/4f = 3/4
4f = 12
f = 3
Answer:
3 cups
Step-by-step explanation
basically if 1/4 cup of milk is for 1 1/2 cups of flour ------ 1/2 cup is twice the amount that a quarter cup is because a 1/4 cup + a 1/4 cup = 1/2 cup so you double the amount of flour too and 1 1/2 + 1 1/2 is 3 cups of flour.
1/4 + 1/4 = 1/2 (milk)
1 1/2 + 1/12 = 3 (flour)
Cincinnati is about 225 miles from Cleveland. What is the distance between these cities on the map?
10 millimeters = 25 miles
Answer:90
Step-by-step explanation:
The distance between these cities on the map is 90 mm.
What is an expression?The mathematical expression combines numerical variables and operations denoted by addition, subtraction, multiplication, and division signs.
Mathematical symbols can be used to represent numbers (constants), variables, operations, functions, brackets, punctuation, and grouping. They can also denote the logical syntax's operation order and other properties.
Given that Cincinnati is about 225 miles from Cleveland and on scale 10 millimetres is equal to 25 miles.
The distance on the map will be calculated as,
25 miles = 10 mm
1 mile = 10 / 25 mm
225 miles = ( 225 x 10 ) / 25
225 miles = 90 mm
Therefore, the distance between these cities on the map is 90 mm.
To know more about an expression follow
https://brainly.com/question/20693129
#SPJ5
CAN SOMEONE PLEASE HELP ME WITH THIS LIKE I NEED THIS FOR A GRADE PLEASE ANYONE!!
Answer:
C
Step-by-step explanation:
Answer:
its b cause its asking you to 3 3 3 its 9 theres 2 ms and 5 cs bassicly out in a si.pkw form
Anthony is sharing 54 marbles with his brother Henry. How many marbles will Anthony get, if he is getting 2/3 of the bag?
Answer:
36
Step-by-step explanation:
54/3=18
18x2=36
Can some one help please
Answer:
66m*2
Step-by-step explanation:
2(20m + 13m)
= 66m*2
Answer:
66 m
Step-by-step explanation:
Since you are adding all the sides, you multiply 20x2 because there are two sides. Then you multiply 13x2 because 6 plus the missing number in the bottom right corner is equal to 7. The answer that you get from the multiplications, you add them and you have your perimeter.
An equation of the line that passes through the point (0,-1) and whose slope is 2 is?
1) y=2x-1
2) y= 2x+2
3) y= -x+2
4) y= -2x-1
Please show your work!
Solve the system of linear equations using substitution.
x=7y-9
x+7y=3
Answer:
2. x = 3-7y
Step-by-step explanation:
help please will mark you brainliests
Answer:
180 - 2x
Step-by-step explanation:
Angle bad = 180 - 2x
Can you simply these fractions?
Answer:
here:
Step-by-step explanation:
(a) 5/6
(b)4/5
(c)3/8
(d) 6/15= 2/5
(e) 2/7
(f)10/14= 5/7
(g) 3/4
(h) 1/2
(i) 6/9
(j) 1/4
Find the price of an $11.00 meal with 8.38% tax
Answer:
im pretty sure its $11.92
Step-by-step explanation:
10 of 10
This recipe makes 4 portions of potato soup.
Richard follows the recipe but wants to make 16 portions.
Complete the amounts of each ingredient that he needs.
Recipe: Serves 4
40 mL oil
50 g onions
300 g potatoes
550 mL milk
Answer:
Multiply 4 portion by 4 to make 16 portions
Step-by-step explanation:
Recipe for 4 portions of potato soup:
40 mL oil
50 g onions
300 g potatoes
550 mL milk
Richard follows the recipe but wants to make 16 portions.
Multiply each ingredients by 4 to make 16 portions of potato soup
Recipe for 16 portions of potato soup:
160 mL oil
200 g onions =
1200 g potatoes =
2200 mL milk
