Answer:
3x - 2y = 7
Where y = x + 2
3x - 2(x + 2) = 7
3x - 2x - 4 = 7
x = 11
Step-by-step explanation:
If you are solving for X and y = x+2 then you write the equation out like this.
3x - 2(x +2) = 7 …. You substitute the x + 2 for y and then solve for x.
2x - 2 times x + 2 times - 2 = 7. That becomes 3x - 2x - 4 = 7. You then subtract 2x from 3x to give you X. Then you add 4 on one side to zero it out and add 4 to the other side. 7 + 4 = 11. This gives you the answer X = 11.
when is it a good idea to round number? When is it not a good idea?
slove for the produck of 82 and 36
Answer:
2952
Step-by-step explanation:
math
plz help.this is a grade! DUE IN 10 MINUTES‼️‼️. he tape diagram below represents how much time you and your friend spend time studying. You study for 45 minutes how many minutes does your friend study
Answer: 30 mins
Step-by-step explanation: 45/3=15
15x2=30
I really need help with this it’s due tonight
any clue? Find the equation of the line shown.
Answer:
Y= -X + 9 Can be found by trials
please help tyy Please help use benchmarks to estimate each sum or differences 4/5+8/9
Real world and mathematical problems
Leila runs at 12 miles per hour. Find the number of miles she can travel if she runs for k less than 6 hours
Answer:
72-12k
Step-by-step explanation:
Our information:
Speed=12mph
Distance=x
Time=K less than 6 hours
Using the distance triangle, (Distance over speed and time,) We can use this equation.
TxS=D
12x(6xk)=D
72-12k
The number of miles she can travel if she runs for k less than 6 hours will be 12k-172.
What is the distance?Distance is a measurement of the separation between two things or places. When we talk about distance, we're talking about a physical length or an estimate based on other physics or practical usage factors.
It is given that,
Speed=12mph
Distance=x
Time, t= (K - 6) hours
The distance for the given condition is,
d = v × t
d = 12 (K - 6)
d = 12k - 72 miles
Thus, the number of miles she can travel if she runs for k less than 6 hours will be 12k-172.
Learn more about the distance here:
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Kaily is making punch for her party. She adds 1 bottle of ginger ale for every 2 gallons of punch. Which graph represents the ginger ale to punch?
Answer:
f
Step-by-step explanation:
each time it goes to the side (punch) once, it goes up (ginger ale) twice
whats the subset for 15?
Answer: 16 subsets
Step-by-step explanation:
A proper subset is a subset that is not identical to the original set—it contains fewer elements. You can see that there are 16 subsets, 15 of which are proper subsets.
PLSSS? i dont really get it
Thanks
Answer:
A) 83 km/ hour
B) 2/7 penalties / game
C) $16 / CD
D) 9 donuts / box
Step-by-step explanation:
A)
For this question they are asking for the distance traveled in 1 hour.
Since 747km was travelled in 9 hours, we divide 747 by 9 to find the distance travelled in 1 hour
747 ÷ 9 = 83
The unit rate is 83 km/ hour
B)
You have to find the number of penalties per game
Like before divide 10 by 35:
10 ÷ 35 = 10/35 = 2/7
2/7 penalties / game
C)
Find the cost of 1 CD :
64 / 4 = 16
$16 / CD
D)
Find the amount of donuts per box:
72/8 = 9
9 donuts per box
-Chetan K
Answer:
1. 83 km per hour
2. ?
3. 16 dollars per cd
4. 9 per box
Step-by-step explanation:
You just divide the first one by the second one
Joy is going to buy food for a class reunion. there are 25 guests and each guest will eat 250 grams of chicken in the table .How many more grams of chicken should she buy? need solution please
Answer:
6250
Step-by-step explanation:
25×250
6250 grams
hope it helps
Answer:
6,250
Step-by-step explanation:
250
x 50
--------
6,250
hope it helps
I need help how do you do this Question 1 1/2+2 3/5
Answer:
4 1/10 or 4.1
Step-by-step:
1 1/2+2 3/5
convert both into an improper fraction
1 1/2 as an improper faction= 3/2
then
2 3/5 as an improper fraction= 13/5
so now we can work the question out as
3/2 + 13/5
which is 41/10
41/10 is an improper faction which is also equal to
4 1/10
Hope this helped you- have a good day bro cya)
Help me with this please
50 POINTS for you PLUS A BRANLIEST, THANKS AND 5 STAR
Answer:
A = 36.397
B = 43.603
AC = 29
Step-by-step explanation:
Use the Tangent to find <A
Tan(A) = opposite / adjacent
opposite = 21
adjacent = 20
Tan(A) = 21 / 20 = 1.05
A = Tan-1(1.05)
A = 46.397
If you have confidence in your answer, you can just subtract this number from 90 since this is a right angle triangle and the two acute angles = 90 degrees.
C = 90 - 46.397
C = 43.603
AC is the hypotenuse of a right angle triangle.
c^2 = a^2 + b^2
a = 20
b = 21
c = ?
c^2 = 20^2 + 21^2
c ^2 = 400 + 441
c^2 = 841
sqrt(c^2) = sqrt(841)
c = 29
Count:3
Answer:
m<a = 43.6 degrees
m<c = 46.4 degrees
AC = 29
Write the equation for the given parent function and listed transformations.
10. x^2, right 1, reflect across the x-axis, vertical shrink by 1/3
11. √x, reflect across the y-axis, vertical shrink by 1/3, up 1, horizontal shrink by 5/3
12. x^3, left 2, down 1, horizontal stretch, by 3/4
13. |x|, vertical stretch by 2, horizontal shrink by 3, reflect across the y-axis.
Answer:
10) -1/3(x-1)^2
11) 1/3(√-5/3x) +1
12) (3/4x+2)^3-1
13) 2|-3x|
Step-by-step explanation:
Can someone please tell me how to solve this and this type of questions?
Simplify.
8200‾‾‾‾√−3162‾‾‾‾√
Answer:
the question is supposed to be \begin{gathered}8 \sqrt 200 - 3\sqrt 162\\\end{gathered}8200−3162
i think the answer is 53√sqrt 2532
Simplify (514)-3. Assume n = 0.
X
1
12
5n
1
125n
n12
125
125
n12
RETRY
Step-by-step explanation:
the second option 1/(125n¹²)
why ?
when we have the exponent of an exponent, we can multiply the exponents.
so, 4×-3 = -12
a negative exponent means 1/... (with the corresponding positive exponent in the denominator).
and an exponent of the multiplication of factors means that the exponent is to be used for every factor in the multiplication.
so, the exponent -3 has to be applied to 5 and to n⁴.
this gives us 5^‐3 and n^-12 as factors.
the result is 1/(5³) × 1/(n¹²).
and that is the mentioned result above.
Please Help and i will give brainliest to whoever gives me the correct answer and you get 30 points.
During the Revolutionary War, Loyalists and Patriots most disagreed about whether:
A: African slaves should be allowed to join the army
B. foreign leaders should help train colonial forces
C. the war should be fought in the North or the South
D. British rule was harmful to the American colonists
Answer:
A
Step-by-step explanation:
Please need help fast
Answer:
just get points
Step-by-step explanation:
i dont know sorry
someone help me please im giving brainliest
Answer:
distributive
Step-by-step explanation:
write 2^3/2 in surd form
Make sure the answer is clearly written. Thanks!
Answer:The solution is in the attached file
Step-by-step explanation:
Fill in the blanks with the missing numbers from the table of values for the equation y=−5x+1
[tex]▪▪▪▪▪▪▪▪▪▪▪▪▪ {\huge\mathfrak{Answer}}▪▪▪▪▪▪▪▪▪▪▪▪▪▪[/tex]
For the values of x , the corresponding values of y are :
x = -1 and y = 6x = 0 and y = 1 x = 1 and y = -4 x = 2 and y = -9Anyone know this one?? Please help asap this is the problem
Answer:
i think its c. srry if im wrong
Step-by-step explanation:
Answer:
A = 8
Step-by-step explanation:
For the equation to have infinitely many solutions , then the terms on both sides must be the same.
Qw require the x- terms on the right side to be 6x
Ax - 2x = 6x ( consider the coefficients )
A - 2 = 6 ( add 2 to both sides )
A = 8
True or false Square roots!
please help me with this!!
Answer:
25=4 is wrong
64=7 is wrong
10= 5 is wrong
99= 9 is wrong
The rest are right:)
Step-by-step explanation:
the original price of a shirt was AED 175. A clothing store decides to sell all shirts at a 40% discount. what is the selling price of a shirt?
[tex] \huge\hookrightarrow \: \mathfrak{Answer }[/tex]
Original price = 175
Discount = 40%
Selling price :
[tex]175 - \bigg(\dfrac{40}{100} \times 175 \bigg)[/tex][tex]175 - \bigg ( \dfrac{40 \times 7}{4} \bigg )[/tex][tex]175 - ( 10 \times 7 )[/tex][tex]175 - 70[/tex][tex]105[/tex]Selling price = AED 105
The mass of a competition frisbee is 125g. Convert its mass to ounces using the unit conversion factor derived from the relationship 1oz = 28.349g
Answer: i answered it the best way i could
The mass in ounces will be 4.40925 oz.
What is unit conversion?A unit conversion expresses the same property as a different unit of measurement.
Given that, the mass of a competition Frisbee is 125g
1 oz = 28.349 g
1 g = 1/28.349 oz
125 g = 125*1/28.349 oz
125 g = 4.40925 oz.
Hence, The mass in ounces will be 4.40925 oz.
For more references on unit conversion, click;
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Identify the degree, leading coefficient and constant value of the following polynomial.
Answer:
degree = 3
leading coefficient = -5
constant = -21
Step-by-step explanation:
Solve algebraically:
y = x^2 - 10x+14
y = 7x-16
Answer:
No answer this pro so icant
Solve
x2 + 11x + 30 = 0
Answer:
x = - 5, - 6
Step-by-step explanation:
x^2 + 11x + 30 = 0
x^2 + 5x + 6x + 30 = 0
x ( x + 5 ) + 6 ( x + 5 ) = 0
( x + 6 ) ( x + 5 ) = 0
x + 6 = 0
x = - 6
x + 5 = 0
x = - 5