Answers
10x + 2y = 18
Then if we are subtracting the bottom equation from the pink box
10x + 2y = 18
-(10x -7y = -18)
9y = 36
y = 4
Related Questions
what is the place value of 3 in 553 049 270?
Answers
Answer:
1 million
Step-by-step explanation:
Start counting at position 0, the rightmost position has value 10⁰ = 1
The one left to that 10¹ = 10
... and so forth ...
The 6th position has value 10⁶ = 1000000, a.k.a. one million.
The place value of 3 in 553 049 270 is 1 million.
Here the number is given as 553 049 270.
We have to find the place value of 3 in given number.
What is Place value?
Place value is describe the position or place of a digit in a number.
Now,
To find the place value of 3;
Start counting at position 0, the rightmost position has value [tex]10^{0}= 1[/tex]
The position of 7, one left to 0, has value [tex]10^{1} = 10[/tex]
------ and so on.
Now, position of 3 is 6th position has value [tex]10^{6} = 1000000[/tex]
So, The place value of 3 in 553 049 270 is 1 million.
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classify the number -4_6/7 in as many ways as you can
Answers
-34/7 is the exact form -4.857142 repeating
Solve the equation
2x2 + 12x - 7 = 0
by completing the square.
Give your answers correct to 2 decimal places.
Show step by step please!!!!
Answers
Step-by-step explanation:
4+12x=7
12x=7-4
12x=3
X=3/12
X=0.25
Find the quotient.
12азр+ = -2a?р
-ба Зp 5
3
-24ар
3
-бар
ба 5р 3
Answers
Answer:put the questions in order before sloving cuz i don't understand the question .
Step-by-step explanation:
What is 25% of 60? I need this answer right away
Answers
Answer:
15
Step-by-step explanation:
Answer:
2.4
Step-by-step explanation:
60÷25=2.4
Solve for x in the following equation.
X/5=25
X=?
Answers
Answer:
125
Step-by-step explanation:
25 × 5 = 125
x/5 = 25 × 5 = 125
x = 125
25 x 5 = 125 your welcome
2?////////////////////////////////////////////////
Answers
Answer:
2...........???
Step-by-step explanation:
Please hurry and answer
Answers
Answer:
B. cot AStep-by-step explanation:
BECAUSE
COS A ÷ SIN A = COT AMARK ME AS BRAINLISTVitamin D is important for the metabolism of calcium and exposure to sunshine is an important source of vitamin D. A researcher wanted to determine whether osteoperosis was associated with a lack of exposure to sunshine. He selected a sample of 250 women with osteoperosis and an equal number of women without osteoperosis. The two groups were matched - in other words they were similar in terms of age, diet, occupation, and exercise levels. Histories on exposure to sunshine over the previous twenty years were obtained for all women. The total number of hours that each woman had been exposed to sunshine in the previous twenty years was estimated. The amount of exposure to sunshine was compared for the two groups.
Required:
a. Determine whether this is a controlled experiment or an observational study.
b. Identify the treatment variable.
Answers
Answer:
Vitamin D and Osteoporosis
a. This is an observational study. The researcher is trying to observe the two groups of women who suffer from osteoporosis. She did not apply any treatment on any group, as is the case with experimental researches.
b. The treatment variable is the amount of exposure to sunshine.
Step-by-step explanation:
This study is an observational research because the researcher lacks the control over the variables, especially the amount of exposure to sunshine. She is merely observing what has occurred previously. On the other hand, an experimental study will involve the application of some treatments to one group of women and then the recording of the effects. But in this case, the researcher merely recorded the effects that had occurred without applying any treatment to any group.
someone please help me on this
Answers
There are many ways to prove this, this is just how I do it. Hope it helps.
a pack of pens cost $3. Prisha spent $12 on pens. Each pack has 5 pens How many packs did Prisha buy?
Answers
Answer: 4
Step-by-step explanation: I think
4 packs x 5 pens = 20 pens (if there’s a follow-up question)
A small publishing company is planning to publish a new book. One time fixed cost 65,018. The variable cost is 10$ . Publisher will sell book for 24.75
How many books must the publisher produce and sell
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Answer:
i make the solving and i take this answer not shore if it right for u
65018
cost:10$
sell:24.75
cp:10
sp:24.75
cp = 100_×_24_.75_
100+65018
my answer was 3.806638162×10-⁴
esto es among us respondan por favor :(
Answers
Answer:
Step-by-step explanation:
solo un nino diria eso
Can someone help with this?
Answers
Answer:
A, 16x^9
Step-by-step explanation:
You apply the function f to x, then apply the function f to that.
f(x)=2x^3
f(f(x))=f(2x^3)=2(2x^3)^3 = 2*2^3*(x^3)^3 = 2*8*x^(3*3)=16x^9
Solve for x in the problems below
Answers
Answer:
a)......1+2=90 degree.....
so,x+x-20=90=2x=110
x=55degree
Step-by-step explanation:
b)let it be a triangle....angle1=56
2=y
3=29....by vertically opposite angles
by ext angle property... x= 1+3=56+29= 85
Answer:
55 degrees is the answer
-a^2+7b^4-2c^3 if a= -4 b= -2 and c=-3
Answers
Step-by-step explanation:
-(-4)²+7(-2)⁴-2(-3)³
=16+7(16)-2(-27)
=15+112+54
=181
The evaluation of the expression is 150.
What is an expression?In mathematics, expression is the combination of variables with the application of operations and prescribed rules. It might take the shape of an equation, some numbers, etc.
The given expression is:
-a² + 7b⁴ -2c³
Substituting, a= -4 b= -2 and c=-3
-a² + 7b⁴ -2c³
= -(-4)² + 7(-2)⁴ -2(-3)³
= -16 + 7 x 16 + 54
= 150
Therefore, the value of the expression is 150.
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Please help me solve this word problem please
Answers
Answer:
it is 69
Step-by-step explanation:
do calculations
please help me , i need this like right noww pleaseeeeeeee !!!!!!!!
Answers
Answer: -9
Step-by-step explanation:
KH = x -1 and Eh =2x-12
2x-12 =10-1=9
Write 8 and 1/3 % as a fraction in simplified form.
Answers
Answer:
as a fraction i believe it would be 25/3, but correct me if im wrong :)
Exercise 1.7.1.
1. In a class of 32 students, 11 study Physics, 16 study Biology, 14 study Chemistry but
4 do not study of these subjects, 5 study Physics and Biology,4 study Physics and
Chemistry, 7 study Biology and chemistry while 6 study chemistry only. Using n to
represent the number of students who study all three subjects.
(a) Illustrate this information on a Venn diagram
(6) Write an equation in terms of n.
(c) By solving your equation in (6), find the number of students who study:
(i) all three subjects
(ii) Physics or Chemistry but not Biology
Answers
thiz language is french
Which angle is an alternate interior angle to 8?
Answers
Answer:
<5
Step-by-step explanation:
Interior angle Kasi eh hihi
-1/3 = r - 3/4 What is r?
Answers
Answer:
r = 5/12
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
BracketsParenthesisExponentsMultiplicationDivisionAdditionSubtractionLeft to RightEquality Properties
Multiplication Property of EqualityDivision Property of EqualityAddition Property of EqualitySubtraction Property of EqualityStep-by-step explanation:
Step 1: Define
-1/3 = r - 3/4
Step 2: Solve for r
[Addition Property of Equality] Add 3/4 on both sides: 5/12 = rRewrite: r = 5/12A washer and a dryer cost $450 combined. The cost of the washer is two times the cost of the dryer. What is the cost of the dryer?
Answers
Answer:
$150
Step-by-step explanation:
so you can divvy this up into 3 parts
$150 each
now put 2 parts into one, and one into the other. The cost of the washer is $150
cost of the dryer is$ 300
95% of 7-year-old children are between inches and inches tall.
Answers
45 and 53 are the correct answers on edge.
Answer:
45 and 53, i got it right on edge
An online video streaming service offers two plans for unlimited streaming. Plan A has a one-time $25 membership fee and is $8 per month. Plan B has a $5 membership fee and is $12 per month.
Write a System of Equations that represents the 2 plans
For which months is Plan A the less expensive option? For which months is Plan B
the less expensive option?
Answers
Answer:
Plan A : f(x) = 25 + 8x
Plan B : f(x) = 5 + 12x
Plan A is better if used for more than 5 months (5 - ∞), plan B for 1 - 4 months
Step-by-step explanation:
x represents months
Plan A : f(x) = 25 + 8x
Plan B : f(x) = 5 + 12x
The equilibrium is when both of these functions have the same value
25 + 8x = 5 + 12x
4x = 20
x = 5
Now we compare these two plans before the 5 months,
e. g. when x = 2
The cost of plan A: 25 + 8x = 25 + 8 * 2 = 41$
The cost of plan B: 5 + 12x = 5 + 12 * 2 = 29$
Since 41$ > 29$, for 1-4 months plan B is a cheaper option, then after 5 months the costs of these two plans are equal and then plan A will be the cheaper aka less expensive option.
Make me the brainliest ;)
(1 point)
Carlos measured the rainfall amounts, in inches, in his town for one week. The amounts were
0.1, 0.5, 0, 0.32, 0, 0, 1.5, and 0. What is the outlier in this set of data?
Oo
00.1
O 0.32
O 1.5
Answers
:
Knowing the average monthly rainfall for a location is helpful when you're packing for a ... Add together all of the monthly rainfall totals in your sample data. ... in inches because rainfall is generally measured in inches in the United States. ... is to maintain the linear relationship of the formula, since there is no 0 BC or 0 AD
Anna surveyed 300 of the students in her school about their favorite color. 186 students said their favorite color was red. What percentage of the surveyed students said their favorite color was red?
Answer:_________
PLEASE HELP ME!!!
Answers
Answer:
62%
Step-by-step explanation:
I took a fraction and made a decimal which was made into a percentage.
186 ÷ 300 = .62
Check: 62% • 300 = 186
The survey Anna conducted has 62% of students whose favorite color is red.
What is percentage?The percentage is the value per hundredth. Percentages can be converted into decimal form by dividing them by hundred, Percentage can also be represented as a fraction.
Given that 186 out of 300 students Anna surveyed chooses red as their favorite color.
The percentage of students whose favorite color is red is no. of students whose favorite color is red divided by the total no. of students multiplied by hundred which is,
= (186/300)×100.
= 186/3.
= 62%.
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THURSDAY Draw this model on a piece of 1 peper. Hank cut his pizza into 10 pieces and ate 6 of the pieces. Rose cut her pizza into 5 pieces and ate the same amount as Hank Show this on the drawing
Answers
Answer:
Rose: 6/5 or 1.2
Hank: 6/10 ÷ 6 = 0.1
Step-by-step explanation:
89% out of 100 that this is correct
A quadrilateral had two angles thst measure 260degrees amd 50 degrees. The other two angles are in a ratio of 2:3. What are the measures of those two angles.
Answers
Step-by-step explanation:
Here's another solution.
360-275-20=65
ratio 3:10
3x+10x=65
13x=65
x=5
5*3=15° and 5*10=50°
15° and 50° are the other two angles
3 5 157 5 4 20 2 4 - 2 2- = 2 5 20 (Type wholebes hact fractions, or mi
Answers
Answer:
look on quizlet you will find your answer to there
