Answers
[tex]\left \{ {{\frac{x}{2}-y=7 } \atop {-\frac{x}{7}+\frac{2y}{7}= -2 }} \right. <=>\left \{ {{\frac{x}{2}.2-2y=2.7} \atop {-\frac{x}{7}.7+\frac{2y}{7}.7= -2.7}} \right. <=>\left \{ {{x-2y=14} \atop {-x+2y=-14}} \right. <=>\left \{ {{0x=0} \atop {y={\frac{x}{2}-7}} \right.[/tex]
ANSWER: B
ok done. Thank to me :>
Integer solution
x= 2n, y=n-7, nEZ
real solution or you can use inverse operation to have addition
y= x/2-7 y=x[multiplied by] 2+7
oh and for the first one the choice is A the second one im sorry im not sure
Related Questions
Complete the statement. Type your answer as a number. 3 gallons =_____ pints
Answers
Answer:
24 pints
Step-by-step explanation:
Each gallon is 8 pints
Answer:
28.8228
Step-by-step explanation:
3 gallons = 28.8228 pints because 1 gallon = 9.6076
and 9.6076 × 3 = 28.8228.
I dont get this can someone please help me.
Answers
Answer:
x[tex]\geq 10[/tex]
Step-by-step explanation:
[tex]5+ \frac{x}{2} = 10\\10+x=20\\x=20-10\\x=10[/tex]
SOLVE FOR P
(1) 4 x p x .5= 12
(2) 0.03 x p x 18= 2.7
Answers
Answer:
1-24 (I dont know about 2)
Step-by-step explanation:
0.5 x 24 = 12
Explanation: 4* 6* .5=12
2- 5
Explanation: 0.03* 5* 18= 2.7
do anyone know
x-7-16=1+4x
Answers
Answer:
the answer is 2
Step-by-step explanation:
x-7-16=1+4x
add x and 4x so that your equation is now
5x+7-16=1
add 16 to 1 then cross out 16 so that your equation is
5x+7=17
subtract 7 from 17 then cross out 7 so that
5x=10
divide 5 by 10 then cross out 5 so that you ar left with
x=2
Find the total cost with tip.
Mr .Smith goes to eat for his son's birthday. The total bill is $56.50. If Mr. Smith leaves a 22% tip. What is the tip amount? What is the total cost of the meal with tip included?
Answers
(56.5)(22)=1,243
1,243/100=12.43
The tip amount is $12.43.
Finding the total cost:
56.50+12.43=68.93
The total cost of the meal with tip included is $68.93.
56.50 + 12.43 = $68.93
2(3y + 7 + 5) = 196 - 16
what’s the value of y?
And tell me how you know this and why or Y ahahahahahaha
Answers
Answer:
y=60
Step-by-step explanation:
196 - 16 = 180
7 + 5 = 12
12 + 3y = 15y
2 * 15y = 30y
180 ÷ 30 = 60
y = 60
Answer:
y=26
Step-by-step explanation:
Let's solve your equation step-by-step.
2(3y+7+5)=196-16
Step 1: Simplify both sides of the equation.
2(3y+7+5)=196-16
(2)(3y)+(2)(7)+(2)(5)=196+-16 (Distribute)
6y+14+10=196+-16
(6y)+(14+10)=(196=-16) (Combine Like Terms)
6y+24=180
Step 2: Subtract 24 from both sides.
6y+24-24=180-24
6y=156
Step 3: Divide both sides by 6.
6y/6 = 156/6
y=26
Find the sale price and then add tax.
Step 1: Markdown (savings) = percent off (% save) x original cost
Sale price = original cost – savings
Step 2: Markup (tax) = percent markup (tax %) x sale price ($)
Total cost = original cost + sales tax
Pete wants to buy a new gaming controller that is on sale. The controller costs $105 and is on sale for 35% off. If the sales tax is 10.1%, how much will he pay for the controller?
The final price is: $_________
Answers
Answer:
The final Price is: $75.14
Step-by-step explanation:
you first have to do -=- which means /105=35%/100
then you would do 105x35=3675/100=36.75
then Subtract 105-36.75=68.25.
The next step is to do -=- /68.25=10.1%/100
you would multiply 68.25 and 10.1 and get 689.325 the you would divided that by 100 and get 6.89325 then you would add 68.25 and 6.89325 and get 75.14.
A fruit market equally divided 80 red apples into 8 containers, and equally divided 54 green apples into 6 containers. Natalie bought 1 container of red apples and 1 container of green apples.
Which equation could be used to find n, the total number of apples Natalie bought?
80 ÷ 6 + 54 ÷ 8 = n
80 ÷ 8 + 54 ÷ 6 = n
(80+54)÷(8+6)=n
80 × 8 + 54 × 6 = n
Answers
Answer:
The second one
Step-by-step explanation:
80 / 8 tells how many red
+ 54 / 6 tells how many green
80 red apples into 8 containers = 80/8
54 green apples into 6 containers = 54/6
1 container of red = 80/8
1 container of green = 54/6
If I want to find the total of the apples Natalie bought I add the two containers together
So 80/8+54/6=n
n=10 red+9 green
n=19
19 apples
(219,379.01 - x) / x = .3321
Answers
Answer:x = 164686.592598
Step-by-step explanation:
219379.01−x/x = 0.3321
−x+219379.01/x = 0.3321
Step 1: Multiply both sides by x.
−x+219379.01≈0.3321x
−x+219379.01 − 0.3321x = 0.3321x−0.3321x (Subtract 0.3321x from both sides)
−1.3321x + 219379.01 = 0
−1.3321x + 219379.01 − 219379.01 = 0 − 219379.01 (Subtract 219379.01 from both sides)
−1.3321x = −219379.01
−1.3321x/−1.3321 = −219379.01/−1.3321
(Divide both sides by -1.3321)
x = 164686.592598
Answer:
164,686.59
Step-by-step explanation:
Carry out the division, then solve for x.
(219,379.01 - x) / x = .3321 . . . . . given
219,379.01/x -1 = 0.3321
219,379.01/x = 1.3321 . . . . add 1
219,379.01/1.3321 = x ≈ 164,686.59 . . . . multiply by x/1.3321
Rounded to 8 significant digits, the value of x is 164,686.59.
_____
The fractional portion is 7894/13321, which has a very long repeating decimal equivalent.
What is a reasonable prediction for the number of times the spinner below would land on a 5 on the next 240 spins
Answers
PLZ HELP AS SOON AS POSSIBLE!!!!!!!!! WILL GIVE LIKE, 5 STARS, & BRAINLIEST; THE WHOLE SHEBANG; (Worth 20 Points!)
Krystine has a weekend job advertising an upcoming play. She has two options for being paid. Option A is an hourly wage of $7.00. Option B is a 5% commission on all money made at the play. She plans to work 8 hours each day on Saturday and Sunday. Krystine estimates the play will make about $2,100 this weekend. Which option gives Krystine more earnings this weekend?
Part 1
Choose the correct answer below.
A.Option B gives Krystine more earnings this weekend.
B.Option A gives Krystine more earnings this weekend.
C.Both options give Krystine the same amount of earnings
Answers
Answer:
option A she will make 112. option B 105. so she will make more money on option A
Answer:
Answer A
Step-by-step explanation:
10 points. Thank you :)
Answers
Answer:
I believe it's A
Step-by-step explanation:
Answer:
i think C. 10(5x-3) is answer
35 is 20% is what number ANSWER FAST!!!!!
Please show work with double number line Thanks.
Answers
Answer:
175
Step-by-step explanation:
If the perimeter of this polygon is 20 in., what is the length of the missing side?
A. 2 in.
B. 3in.
C. 4 in.
D. 5 in.
Answers
Answer:
2 inches
Step-by-step explanation:
PLS HELP ME!!!!! URGENT!
Answers
Answer:
it's the very first anwer
Step-by-step explanation:
all you had to do was subtract the bottom exponents from the top, maintaining the sane base numbers
[tex] \frac{4 {}^{33 } \times {8}^{37} }{4 {}^{15 \times } 8 {}^{21} } \\ we \: know \: that \\ {a}^{m} \div {a}^{n} = (a) {}^{m - n} \\ \: = (4) {}^{33 - 15} \times (8) {}^{37 - 21} \\ = (4) {}^{18} \times (8) {}^{16} [/tex]
option (1) is correct answer- 1/9x+2.4=6 what is x
Answers
-1/9x+2.4-2.4=6-2.4
Then we’re going to simplify
-1/9x=3.6
Then multiply both sides by -9
(-1/9x) (-9) =3.6 (-9)
Then you just Gotta simplify
U get
X=-32.4
what is 54 x 67 ? Plz help!!!!
Answers
Answer:
3618
Step-by-step explanation:
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Answers
Answer: 1. 447
2. 572
3. 257
Step-by-step explanation:
associative property or commutative property, or identity property or zero property
Answers
b. Zero Property
c. Identity Property
d. Associative Property
b.) zero property
c.) identity property
d.) associative property
WHOEVER ANSWERS FIRST GETS A BRAINLIEST AND 20 POINTS
Which of the following is the algebraic form for the verbal statement shown?
"The sum of the 5 and a number results in 14"
A. n-5=14
B. 5-n=14
C. 5+n=14
D. n+14=5
Answers
Answer:
C
Step-by-step explanation:
clearly C can be interpreted as the said word problem
Answer:
C.
Step-by-step explanation:
and the number is 9
Because 9 + 5 = 14.
What is [tex]rs^{3}[/tex] divided by 8-2r if r=8 and s=3?
Answers
Answer:
-2304
Step-by-step explanation:
rs^3=(8)(3)^3=13824 r*2=8*2=16 8-16=-8
13824/-6=-2304
:)
I hope I helped :3
1. Find the percent markup.
Markup ($) = percent markup (%) x original cost ($)
A computer store buys a laptop for $635 directly from the manufacturer (Dell). The markup is $570. What is the percent markup on the computer?
The percent markup is: _________%
Answers
[tex] \mathbb{ \ \underline{ \: \: ANSWER : }}[/tex]
1. Find the percent markup.
Markup ($) = percent markup (%) x original cost ($)
A computer store buys a laptop for $635 directly from the manufacturer (Dell). The markup is $570. What is the percent markup on the computer?
The percent markup is: 90 %
[tex] \mathbb{ \ \underline{ \: \: SOLUTION : }}[/tex]
FORMULA: Percent of Markup = Markup/Cost x 100
= $570/$635 x 100= 0.90 x 100= 90%10 points please help, will give brainliest Thanks!
Answers
Answer: They are neutral so they remain equal.
Step-by-step explanation: Can I have brainliest?
What is the name of the tide when the sun, moon, and earth are all aligned, causing the greatest pull for highest and lowest tides?
Question 10 options:
Low tide
Spring tide
High tide
Neap tide
Answers
Answer:
Whenever the earth, moon and sun are aligned, the gravitational pull of the moon is augmented by the gravitational pull of the sun, causing larger than average tidal ranges — meaning especially high high tides and very low low tides. These extreme tides are called “spring tides.”
Step-by-step explanation:
HELPP 24 grams of salt and 16 grams of pure water were added to 160 grams of a 35% solution. What is the percentage of salt in the new solution?
Answers
Point p is shown on the number line below
The distance between point q and point p is 6 1/2 units. Which number could represent point Q? ( Show work to get brainliest )
Answers
Answer:
2.5
Step-by-step explanation:
The distance between P and Q is 6.5.
P = -4
-4 + 6.5 = 2.5
Therefore Q = 2.5
The number to represent point Q is,
⇒ 2.5
What is Number line?Number line is a horizontal line where numbers are marked at equal intervals one after another form smaller to greater.
Given that;
Point p is shown on the number line.
⇒ P = - 4
The distance between point q and point p = 6 1/2 units
Now,
Let the position of the point Q = x
Here, The distance between point q and point p = 6 1/2 units
Hence, We get;
⇒ x - (- 4) = 6 1/2
⇒ x + 4 = 13/2
⇒ x + 4 = 6.5
⇒ x = 6.5 - 4
⇒ x = 2.5
Thus, The number to represent point Q = 2.5
Learn more about the number line visit:
https://brainly.com/question/24644930
#SPJ2
Thomas found a board in his dad’s garage. He cut off 15 in. Then he cut the remaining board into 3 equal pieces. Each piece is now 25 in long. How long was the board before he cut it?
What strategy would be best to solve this problem?
Answers
Sam has saved 140 sand dollars and wants to give them away equally to n friends. Write an expression to show how many sand dollars each of Sam's friends will receive.
Answers
Answer:
The answer is B. Equal distribution of the dollars would be to divide by how many friends there are.
Please help asap! I'll give brainly!
Answers
Answer:
for the first one the answer is 75, for the second one its they are not proportional,
Step-by-step explanation:
IM not sure if its correct sorry:)
Find the missing quantity in the double number line.
Answers
Answer:
Your answer would be 50
Step-by-step explanation: