Answer:
Call the sister's height x. The boy is twice as tall, so that's 2x. The father is 30 cm taller than the boy, so his height is 2x + 30. The combined height is 3.8m, which is 380cm. Now you can write an equation
x + 2x + 2x + 30 = 380
collect like terms
5x = 350
x = 70
the sister is 70cm tall, the boy is 2*70 = 140 cm, and the father is 140 + 30 = 170cm
Check that the heights add up to 3.8m: 70 + 140 + 170 = 380 cm = 3.8m. Correct
Step-by-step explanation:
hope it helps
1) Angelina has a recipe for chocolate cookies. She uses 2 2 cups of flour to make 4
dozen cookies. Luke will follow the same recipe. He will make d dozen cookies using T
cups of flours. What equation represents le relationship between d and T?
ge
Konts
Answer:
d/2=T
Step-by-step explanation:
for every dozen we figure by 2 and that will show the amount of flour needed. for example 2 cups for 4 dozen cookies means that if we made 8 dozen cookies then we need 4 cups of flour
can someone actually help me w this ?
Answer:
the first 1
Step-by-step explanation:
Zoey is a salesperson who sells computers at an electronics store. She makes a base
pay amount each day and then is paid a commission as a percentage of the total
dollar amount the company makes from her sales that day. Let P represent Zoey's
total pay on a day on which she sells x dollars worth of computers. The table below
has select values showing the linear relationship between x and P. Determine the
base pay Zoey makes regardless of computer sales.
ac
Р
500
97.5
2500 127.5
6500 187.5
Answer:90
Step-by-step explanation:
Can you guys help me with my homework?
Answer:
3π=3×3.14 =9.42
7π=7×3.14=21.98
Step-by-step explanation:
so the distance around window , in feet be
3π=3×3.14=9.42
7π=7×3.14=21.98
CHECK MY PAGE GEOMETRY PLEASE HELP FAST
Answer:
ok sure
Step-by-step explanation:
please help me please will give brainliest to anyone who
Answer: 45%
This may not be right but, if you look at the graph you can see that the point 10,45) would lay in the right place with the graph
Sam is going on a spelunking trip and must cover 640 miles in 8 days. If Sam is spelunking 10 hours each day, how many miles must he spelunk each hour?
Answer: 80
Step-by-step explanation: :D happy to help. Plz friend me!!!
The price of a car is $17,500.00. The price depreciated at a rate of 2.3% annually. How much will it be worth in 8
years?
help me. i will give 5 star and I will heart answer
Answer:
It’s D
Step-by-step explanation:
Solve the following equation:
2(-2x -4) + 6 = 5 - 3(x+1)
HELP ME PLEASE
Answer:
x = -4
Step-by-step explanation:
2(-2x - 4) + 6 = 5 - 3(x+1)
Distribute the numbers outside the parenthesis to the numbers inside the parenthesis. You should have this equation:
-4x - 8 + 6 = 5 - 3x -3
Combine like terms:
-4x - 2 = 2 - 3x
Add a positive 3x to both sides to have the variable x on one side only.
-4x - 2 = 2 - 3x
+3x +3x
-x - 2 = 2
Add two to both sides to isolate the variable, x.
-x - 2 = 2
+2 +2
-x = 4
Divide both sides by -1 to leave x by itself.
-x = 4
-1 -1
x = -4
The final answer should be x = -4.
Rearrange the equation so a is the independent variable.
3a-7= -4b+1
Please help! :)
Answer:
Hiii the answer would be a= -4b+8/3
Given h(x) = x2 + 3.
h(x) = 103, what is x?
Answer:
10 or -10
Step-by-step explanation:
Help me please i need to know im timed
Answer:
you should not be cheating on a test or your diagnostic ;)
Answer:
592 inches squared
Step-by-step explanation:
Find p and q...............
Step-by-step explanation:
There must be some variables on p or q
If u send those i can help u
Natalie needs to save $479.58 for a vacation. She saved $149.88, and earns $7.85 an hour working at the grocery store. How many hours must she work to meet her goals?
Answer:
42 hours
Step-by-step explanation:
Natalie needs to save a total of $479.58
She already saved $149.98
The amount left to save is
= 479.58-149.98
= 329.7
If she earns 7.85 dollars working per hour then the number of hours she can work to get $329.7 can be calculated as follows
= 329.7 / 7.85
= 42
Hence Natalie will work for 42 hours to meet her goals
THIS IS DUE IN 5 MINUTES PLEASEEEE
Enter the range of values for x:
3 < x < [?]
Answer:
good question
Step-by-step explanation:
h
Identify the property that does NOT belong with the other three.
A. x+12=12+x
B. 7h=h•7
C. 1+a=a+1
D. (2j)k=2(jk)
Sandy cut a 151-centimeter board into five pieces. The three shortest pieces are the same length and the two longer pieces are each three centimeters longer than a short piece. How long is each piece?
Answer: The short piece is 29.6 cm long and 32.6 cm long.
Step-by-step explanation:
Let x = length of short pieces , y = lengthof longer pieces.
y=x+3 (i)
As per given,
3x+2y=151 (ii)
Substitute value of y from (i) in (ii), we get
[tex]3x+2(x+3)=151\\\\\Rightarrow\ 3x+2x+3=151\\\\\Rightarrow\ 5x=148\\\\\Rightarrow\ x=\dfrac{148}{5}=29.6[/tex]
Put value of in (i), we get
y=29.6+3= 32.6
Hence, the short piece is 29.6 cm long and 32.6 cm long.
The circumference of a circle is 407 cm. Find the diameter, the radius, the length of an arc of 100°, and the area of a sector with central angle 100°.
Answer: 407cm =
100° =
100° =
I hope this helps :)
By selling a stool for $240 a carpenter loses 20%. How much per cent would he gain or lose by selling it for $360?
Answer:
Answer. Step-by-step explanation: By selling it at 360 he would lose 13% because the amount of money lost with 240$ is 48$ (You can find that out by doing 240 x 0.2). If he loses 48$ again when selling it at 360$ he would make 312 dollars.
plz mark brainlist i beg
Answer:
he would gain 20 percent
Step-by-step explanation:
Daniel's print shop purchased a new printer for $35,000. Each year it depreciated at a rate of 5%. What will it's approximate value be at the end of the fourth year?
Answer:
28,000
Step-by-step explanation:
do 5% times 4% and you will get 20% and then change 20% to a decimal and multiply 0.20 times 35,000 and you should get 7000 then subtract 35,000 - 7000 and you should get 28,000
Answer:
$28,507.72
Step-by-step explanation:
y=35000 (1- .05)^4
y=35000 (.95)^4
y=35000(.81451)
y=28507
please like!
VVV and rate stars! VVVV :D
Me. Gonzalez packs 45 boxes with limes. Each box holds 100 limes . How many limes can ms. Gonzalez pack into these boxes
Answer:
4,500
Step-by-step explanation:
To find the total number of limes, you need to multiply the group number (45 boxes) by the amount each can hold (100 limes).
45 x 100 = 4500 limes
Answer:
4,500
Step-by-step explanation:
45*100
Bus A and Bus B leave the bus depot at 6 am.
Bus A takes 20 minutes to complete its route once and bus B takes 35 minutes to complete its route once.
If both buses continue to repeat their route, at what time will they be back at the bus depot together?
Assume the buses have no breaks in between routes.
Give your answer as a 12-hour clock time.
Answer:
therefore = 8: 20 a.m
Step-by-step explanation:
The time will they back at the bus depot together is shown below:
The factors of 20 minutes and 35 minutes are 5, 4 and 5, 7
So here the LCM is 5
Now
= 5 × 4 × 7
= 140 mins later
As the bus took off at 6 am
So,
Hours Mins
6 0
+ 2 20 (140 mins = 2 hrs 20 mins)
= 8 20
therefore = 8: 20 a.m
A salesperson earns commission on the sales that she makes each mouth.The sales person earns a 5% commissions on the first $5,000 she has in sales. The sales person Earns a 7.5% commissions on the amount of her sales that are greater than 5,000.The sales person earned $1,375 in commission last months.How much,in dollars, did she have in sales last month?
Answer:
working on the same questions lol
Step-by-step explanation:
Which best describes the constant difference for the
function?
O a constant second difference of -6
O a constant second difference of 8
O a constant third difference of -6
O a constant third difference of 8
Answer:
am not sure but ill go with c cause its the most sense to me
Don’t know how to do it.
Answer:
C
Step-by-step explanation:
Solve the system of equations.
7x + 6y = -1
--x + 2y = 3
Answer:
X=-1
Y=1
Solve using Elimination.
Step-by-step explanation:
Multiply the second equation by 7.
The two equations are now:
7x+6y=-1
-7x +14y=21
Combine the two equations
7x and -7x cancel each other out, 14y+6y is 20y, and 21 - 1 is 20.
The equation is now
20y=20, divide 20 on both sides to get Y=1.
Now, substitute 1 as Y in the second equation for -x+2(1)=3
-x+2=3, can be simplified, by subtracting 2 from both sides. Giving us
-x=1.
Divide both sides by -1 for X=-1
Final answers being X=-1, Y=1
Hope this helps! Let me know if you have further questions!
A plane took 3 Hours and 33 Minutes to finish a journey. If the distance of the journey was 2840 miles, at what average speed did the plane travel? __mph
Answer:
853 mph
Step-by-step explanation:
Answer:
207.611 miles per hr
Step-by-step explanation:
PLEASE ANSWER TODAY ASAP WILL GIVE BRAINLIEST FOR FIRST CORRECT ANSWER.
Angle a and angle b are complementary angles. The measure of ∠a is 42°.
Which equation represents this situation with x representing the measure of ∠b?
42−x=90
90+x=42
42+x=90
90+42=x
Answer:
42+x=90
Step-by-step explanation:
Complementary angles are when their measures add up to 90°
Therefore, if angle a is 42° you would find angle b by subtracting 42° from 90° which is shown in equation number three.
Which fraction is equivalent to 72%?
A. start fraction 16 over 25 end fraction
B. eighteen over twenty five
C. nineteen over twenty five
Answer:
B. 18/25
Step-by-step explanation:
72% = 72/100
divide each side by two = 36/50
divide by two again = 18/25
