Mathematics College

The scouts sold small and large boxes of cookies as a fund raiser. One scout sold 7 small boxes and 12 large boxes for $54.00. Another scout sold 5 small boxes and 10 large boxes for $60.00. The scout leader wrote a system of equations to represent the their sales.

7 x + 12 y = 54. 5 x + 10 y = 60.

Which constants can each equation be multiplied by so that one variable is eliminated when the equations are added? Check all that apply.
The first equation can be multiplied by 5 and the second equation by –6 to eliminate the y.
The first equation can be multiplied by –5 and the second equation by 6 to eliminate the y.
The first equation can be multiplied by –5 and the second equation by 7 to eliminate the x.
The first equation can be multiplied by 5 and the second equation by –7 to eliminate the x.
The first equation can be multiplied by –5 and the second equation by 10 to eliminate the x.

Answers

Answer 1

Answer:

1,3,4

Step-by-step explanation:

Answer 2

Answer:

1,2,3,4

Step-by-step explanation:

i am just smart and dont cheat ;)

Related Questions

work out 4/5 - 1/5
work out 9/11 +5/11
work out 3/4 + 1/8

Answers

Answer:

4/5-1/5=6.0

9/11+5/11=1.27

3/4+1/8=0.875

the difference of two numbers is 7. Three times the greater number is 72. find the numbers

Answers

Answer:

[tex]\huge\boxed{\tt{x = 24, y = 17}}[/tex]

Step-by-step explanation:

Let the greater number be x and the smaller number be y.

So,

Condition # 1:

x - y = 7 --------------(1)

Condition # 2:

3x = 72 --------------(2)

Taking Eq. (2)

3x = 72

Divide both sides by 3

x = 72 / 3

x = 24

Now, Put x = 24 in Eq. (1)

24 - y = 7

Subtract 24 to both sides

-y = 7 - 24

-y = -17

y = 17

[tex]\rule[225]{225}{2}[/tex]

Hope this helped!

~AH1807

x + 10 < 78 find three numbers to make this question true

Answers

Answer:

Step-by-step explanation:

Let's solve your inequality step-by-step.

x+10<78

Step 1: Subtract 10 from both sides.

x+10−10<78−10

x<68

Answer:

x<68

2 (a) Simplify.
(i) a6 a2
O pop

Answers

Answer:

a4...................hope this helps

Axis of sym: x =

Vertex: (
,
)

Do not do the domain

Range: Pick one: A. y≥4 B. y<4 C. y≤4 D. y≤−2 E. y<−2

The Range is

Zeros:
and

Equation:

Answers

Answer:

SEE BELOW

Step-by-step explanation:

to understand thisyou need to know about:quadratic functionPEMDASlet's solve:

vertex:(h,k)

therefore

vertex:(-1,4)

axis of symmetry:x=h

therefore

axis of symmetry:x=-1

to find the quadratic equation we need to figure out the vertex form of quadratic equation and then simply it to standard form i.e ax²+bx+c=0

vertex form of quadratic equation:

y=a(x-h)²+k

therefore

y=a(x-(-1))²+4y=a(x+1)²+4

it's to notice that we don't know what a is

therefore we have to figure it out

the graph crosses y-asix at (0,3) coordinates

so,

3=a(0+1)²+4

simplify parentheses:

[tex]3 = a(1 {)}^{2} + 4[/tex]

simplify exponent:

[tex]3 = a + 4[/tex]

therefore

[tex]a = - 1[/tex]

our vertex form of quadratic equation is

y=-(x+1)²+4

let's simplify it to standard form

simplify square:

[tex]y = - ( {x}^{2} + 2x + 1) + 4[/tex]

simplify parentheses:

[tex]y = - {x}^{2} - 2x - 1 + 4[/tex]

simplify addition:

[tex]y = - {x}^{2} - 2x + 3[/tex]

therefore our answer is D)y=-x²-2x+3

the domain of the function

[tex]x\in \mathbb{R}[/tex]

and the range of the function is

[tex]y\leqslant 4[/tex]

zeroes of the function:

[tex] - {x}^{2} - 2x + 3 = 0[/tex]

[tex] \sf divide \: both \: sides \: by \: - 1[/tex]

[tex] {x}^{2} + 2x - 3 = 0[/tex]

[tex] \implies \: {x}^{2} + 3x - x + 3 = 0[/tex]

factor out x and -1 respectively:

[tex] \sf \implies \: x(x + 3) - 1(x + 3 )= 0[/tex]

group:

[tex] \implies \: (x - 1)(x + 3) = 0[/tex]

therefore

[tex] \begin{cases} x_{1} = 1 \\ x_{2} = - 3\end{cases}[/tex]

imeter, Area, Dimensions - Real World Hacice estions Notes/Examples 1. A triangular garden has sides measuring 14 feet, 17 feet, and 28 feet. If Cody is laying a brick ETER border around the garden, how many feet of brick will he laya uchs Hihe rectangular path

Answers

Hihxhdjdisisjieh xhhshshduududusuusus

work out the size of angle x

Answers

Answer:

∠x = 117°

Step-by-step explanation:

supplement of ∠101° = 79°

all triangle interior angles add up to 180°

180° - 79° - 38° = 63°

the supplementary angle to 63° is 117°

Can someone help me :(

Answers

Answer:

x = 20

Step-by-step explanation:

19 < x < 25

x had to be higher than 19 but lower than 25

18 cant be the answer because it is less than 19

27 cant be the answer because it is higher than 25

that leaves 20, which is the right answer

19 < 20 < 25

Discount, markup, and commission word problems
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A store has a 40% off sale on headphones. With this discount, the price of one pair of headphones is $36.
What is the original price of the pair of headphones?
$
Show Calculator
Stuck? Watch a video or use a hint.
Report a problem

Answers

Answer:

90$

Step-by-step explanation:

X(40%) = 36$

X(40/100) =36

40X = 3600

X = 90$

(recheck: 90$ x 40%= 36$)

Wayne charges the following for repairing washing machines:
£28 call-out charge + £16 for each half-hour he spends on the repair
If a repair costs £76, how long did it take?

Answers

76-28=48
48/16= 3
1hr and a half

Someone help me right now

Answers

Answer:

33cm

Step-by-step explanation:

You need to add up all the sides

slove for q: q/10 = 4

Answers

Answer:

Step-by-step explanation:

Answer:

1/10 = 4

Step-by-step explanation:

What about the rational equation causes asymptotes?

Answers

Answer:Some functions have asymptotes because the denominator equals zero for a particular value of x or because the denominator increases faster than the numerator as x increases.

Step-by-step explanation:

can someone help me with this please

Answers

Answer:

This figure has 4 lines of symmetry.

A person locked or android phone with a swipe code on a phone with a 3 x 3 gridlock that’s considered an example where the swipe code must start with the top left button and must pass through two more buttons each executive button is adjacent up down left right or diagonal how many swipe codes are they possible
Answer 15,18

Answers

Answer:

Step-by-step explanation:

Answer:

It says 15 18 is correct

Step-by-step explanation:

I need a answer ASAP

Answers

Answer:

Step-by-step explanation:

y = (10x^2 + 3x^4)/ 2x^2

where x is not equal to 0

(20x + 12x)/4x

32x / 4x

= 8

A city map is laid out on a coordinate grid with City Hall at the origin. Each unit on the grid represents a distance of one city block.

Max spends the day running errands and visiting the following locations before heading back to his apartment.

Location Coordinates
Post Office (–15, –4)
Library (–15, 16)
Police Station (–3, 16)
Bank (–3, 8)
Coffee Shop (4, 8)
Pet Store (4, –4)
Grocery Store (–8, –4)

Which of the following options has a distance of 12 city blocks? Select three that apply.

HURRY

Answers

Answer:its library to police station

Step-by-step explanation:

A hipopótamos weight 1.5 tons what is its weight in ounces

Answers

Answer:

48000

Step-by-step explanation:

multiply the mass value by 32000

Answer:

48000

Step-by-step explanation:

Please help!! No links

Answers

9514 1404 393

Answer:

10.5

Step-by-step explanation:

Corresponding sides of similar triangles are proportional, so ...

ZX/ZY = CA/CB

ZX = Zy(CA/CB) = 14(3/4)

ZX = 10.5

Eloise spent $1.65 on potato salad that costs $0.25 per pound.

How many pounds of potato salad did she buy?

Answers

Answer:

she would be able to buy 6.6

Answer:

its 6.6

Step-by-step explanation:

cause i did that already

mr kabi invest k375 at a simple interest rate of 8.375 per annum what amount will his investment grow to over 4 years 8 months?

Answers

Answer:

I am not sure

Step-by-step explanation:

Sorry

The invested amount will be k 521.56 after 4 years 8 months if Mr. Kabi invests k375 at a simple interest rate of 8.375 per annum.

What is simple interest?

It is defined as the interest based on the principal amount, it does not include the compounded amount. The interest calculates on the initial amount or borrowed amount.

It is given that:

Mr Kabi invest k375 at a simple interest rate of 8.375 per annum

The invested amount = k 375

Rate of interest = 8.375 per anum

Rate of interest = 8.375/12 per month

Rate of interest = 0.6979 per month

Number of months = 4x12 + 8 = 56

As we know, the formula for the simple interest is given by:

A = P(1 + rt)

A = 375(1 + 0.6979×56)

A = k 521.56

Thus, the invested amount will be k 521.56 after 4 years and 8 months if Mr. Kabi invests k375 at a simple interest rate of 8.375 per annum.

Learn more about the simple interest here:

brainly.com/question/22621039

#SPJ2

Can someone please give me the answer I will mark u brilliant

Answers

The first question is B and the second one is C

Answer:

p = 16.8

[tex] r \geqslant 5.5[/tex]

Step-by-step explanation:

12)

p + 2.1 = 18.9

p = 18.9 - 2.1

p = 16.8

13)

[tex]r \geqslant 5.5[/tex]

how long will it take to pump 90 liters of water ???

Answers

maybe 1800 secondes mmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmm

which set does square 7 belong to? integers and irrational numbers irrational and real numbers real and rational numbers rational and whole numbers

Answers

Answer:

Rational and whole numbers

Step-by-step explanation:

7x7=49 which is a whole number which automatically makes it rational!

Find legit BD

I need help for my assignment

Answers

Answer:

BD = 4

Step-by-step explanation:

∆BAD is congruent to ∆CAD based on the AAS Congruence Theorem.

Therefore:

BD = CD

3x + 1 = 5x - 1 (substitution)

Collect like terms

3x - 5x = -1 - 1

-2x = -2

Divide both sides by -2

x = -2/-2

x = 1

✔️BD = 3x + 1

Plug in the value of x

BD = 3(1) + 1

BD = 3 + 1

BD = 4

Example 4:
If sin18° = t determine the following in term of t
(a) cos189 (b) sin36° (c) tan198°

Answers

Answer:

sorry but i need the points

Step-by-step explanation:

(PLEASE HELP)James tosses a coin 50 times. It lands on heads 23 times and on tails 27 times.
What is the relative frequency of the coin landing on heads in this experiment?

A 23%

B 46%

C 50%

D 54%

Answers

Answer:

Step-by-step explanation:

Find the value of x 116 degrees and 33 degrees

Answers

Answer:

x = 31 degrees

Step-by-step explanation:

This is a triangle because there are 3 angles so they all add up to 180 degrees.

116 + 33 + x + 180 Add 116 and 33

149 + x = 180 subtract both sides by 149

x = 31

50 POINTS + BRAINLIEST

PLEASE DONT STEAL POINTS THIS IS MY 2ND TIME ASKING THIS QUESTION

Answers

Answer:

Step-by-step explanation:

Hope you pass good luck to you!

It’s 16 simply because the middle line in the box and whisker plot is over 16

what name of triangle name is when they only have two side the same lenght

Answers

It's name is “isosceles triangle”

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