Answers
Answer:
She worked 12 hours as a carpenter and 18 hours as a blacksmith
Step-by-step explanation:
You can solve this problem using a system of equations:
where c represents hours worked as a carpenter, and b represents hours worked as a blacksmith;
c + b = 30
20c + 25b = 690
To solve this system, you can multiply the first equation by 20 and subtract it from the second to isolate b:
20c + 25b = 690
- 20c + 20b = 600
5b = 90
Now, you can solve for b:
5b = 90
b = 18 (divide both sides by 5)
Now that you know b, you can input it into the first equation to find c:
b + c = 30, where b = 18;
18 + c = 30 (replace b in the equation with 18 because of transitive property of equality)
c = 12 (subtract 18 from both sides of the equation))
Related Questions
I need help please!!!
Answers
Answer:
Image is all black, cant help ya!
Step-by-step explanation:
I believe it is 5x-7+ jkjksorry
y+2=−3(x−4)
Complete the missing value in the solution to the equation.
Answers
y+2=-3x+12
-2 -2
y=-3x+10
This is as far as it can be simplified.
---
hope it helps
Answer: y = - 3x + 10
Step-by-step explanation:
Step 1: Flip the equation : −3x+12=y+2
Step 2: Add -12 to both sides : − 3 x + 12 + − 12 = y + 2 + -12
9m + 3m -m = what's the correct answer?
Answers
Answer:
11m
Step-by-step explanation:
Simplify
9m+3m−m
=9m+3m+−m
Combine Like Terms:
=9m+3m+−m
=(9m+3m+−m)
=11m
Answer:
=11m
Answer:
11m
Step-by-step explanation:
9m + 3m - m = ?
just look at it without the variables: m
9 + 3 - 1 = ?
The reason there is a 1 before the m is because there is always atleast a 1 before a variable. 1 x m = m, but 0 x m = 0. so '1'.
ok so now lets solve
9 + 3 - 1
12 - 1
11
so the answer is 11, add the variables back
9m + 3m - m
12m - m
11m
PLEASEEE HELP ME
A cylinder-shaped container is used to store water. The container has a height of 6 feet and a diameter of 3 feet. about how much water is in the container when it is 3/4 full?
PLEASE ILL MARK BRAINLIST
Answers
3/4 *42.41=31.81ft
What is the recursive rule for the sequence −3, −1, 1, 3...?
Answers
Answer:
+2
Step-by-step explanation:
-3 + 2 = -1
-1 + 2 = 1
1 + 2 = 3
Answer:
[tex]a_{n}[/tex] = [tex]a_{n-1}[/tex] + 2
Step-by-step explanation:
There is a common difference d between consecutive terms, that is
d = - 1 - (- 3) = 1 - (- 1) = 3 - 1 = 2
A recursive rule allows a term in the sequence to be found by adding d to the previous term, that is
[tex]a_{n}[/tex] = [tex]a_{n-1}[/tex] + 2
Write and expression that could determine the area of the rectangular field.
Determine the length and width of the field rounded to the nearest tenth if the area is 300 ft2.
Answers
Answer:
to find the area of a rectangle multiple the length by the with the formula is 8 = LW where a is the area l is the length w is the width and* means multiple
Someone please help me with this question I need the answer plsss
Answers
Answer:
6
Step-by-step explanation:
The slope is: [tex]\frac{y_{2} -y_{1} }{x_{2} -x_{1} }[/tex]. In this case, for the numerator you get 30. For the denominator you get 5. Divide 30/5 to get 6 as your final slope.
Hope it helps!
Yo 10 or 22 points pls help I rlly need help !!!
Answers
x < -7
And then shade to the left 7 places.
For every 2 cups of sugar in the cookie recipe, there are 5 cups of flour.
What is the ratio of cups of flour to cups of sugar?
Answers
Answer:
2:5
Step-by-step explanation:
What is the place value of the 6 in the number 8405.236?
Answers
Answer:
6 thousandths
Step-by-step explanation:
the 2 is tenths the 3 is hundreths and the 6 is thousandths
Answer:
The 6 is in the thousands place.
Can Someone help me with this work
Answers
Answer:
Oar City is cheaper
Step-by-step explanation:
27/3=9 (Boat Bunker)
45/9=5 (Oar City)
$4 Cheaper than Boat Bunker
Brainlist?
Answer: Oar City is the answer.
Step-by-step explanation:
Jasmine made a scale drawing of an office. The scale of the drawing was 4 inches: 3 feet. The desk is 8 inches long in the drawing. How long is the actual desk?
Answers
Answer:its 6 feet
Step-by-step explanation:
What is the solution to this equation? 2 x + 10 = 28
Answers
Answer:
x=9
Step-by-step explanation:
the y-intercept is the y -value of the point at which the graph of a function crosses the y-axis True or False
Answers
Answer:
True
Step-by-step explanation:
The y intercept is where the line "crosses through" or "goes through" the y axis.
Unknown angle problems ( with algebra ) solve for x in the diagram below
Answers
Answer:
5x+35=90
5x. =90-35
5x =55
X=11
The value of x from the given figure is 11°.
What is an angle?An angle is formed when two straight lines or rays meet at a common endpoint. The common point of contact is called the vertex of an angle.
In the figure, the whole angle is 90°, the ray divide the angle into two angles such as 35° and 5x°.
From the given figure, we have
35°+5x°=90°
5x°=90°-35°
5x°=55°
x°=11°
Therefore, the value of x is 11°.
To learn more about an angle visit:
https://brainly.com/question/9811089.
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At 5:00 a.m., the temperature outside was 6°F below zero. By 12:00p.m., it rose by 9°F. At 7:00 p.m., the temperature
dropped by 5°F. What was the evening temperature?
A. -20°F
B. 8°F
C. 20°F
D. -2°F
Answers
Answer:
-2 degrees Fahrenheit
Step-by-step explanation:
math also I'm asian
A diagram from a proof of the
Pythagorean Theorem is shown. Which
statement would NOT be used in the
proof?
Answers
Answer:
The answer is the forth one, you suppose Sabi am
2x - y + 4z + 1
1. how many terms are there in the algebraic expression?
2. what is the coefficient of y?
3. what are the variables in the algebraic expression?
4. what os the constant?
Answers
Answer:
1. There are 4 terms
2. I think it is 1
3. The variables is x and y
4. The constant is 1
will mark brainliest please help
Answers
Answer:
445
Step-by-step explanation:
Shirley bought 20.8 pounds of bird seed at a bargain store. She wants to fill her feeder 100 times
with anequal amount. How much seed should she put in the feeder each time?
Answers
Answer:
0.208
Step-by-step explanation:
Hope this helps....
Answer:
0.208
Step-by-step explanation:
Find the slope of the line through the points (-3,1) and (-1,5).
Answers
Answer:
The slope is 2
Step-by-step explanation:
(-3,1)
+2 ——> (-1,5) <—— +4
m = y/x —> 4/2 —> 2
m = 2
Answer:
[tex]\boxed {\boxed {\sf m=2}}[/tex]
Step-by-step explanation:
The formula for slope is:
[tex]m= \frac {y_2-y_1}{x_2-x_1}[/tex]
where (x₁, y₁) and (x₂, y₂) are the points on the line.
We are given the points (-3,1) and (-1,5). Therefore,
[tex]x_1= -3 \\y_1= 1 \\x_2= -1 \\y_2=5[/tex]
Substitute the values into the formula.
[tex]m= \frac {5-1}{-1--3}[/tex]
Solve the numerator.
[tex]m= \frac{4}{-1--3}[/tex]
Solve the denominator.
-1 --3= -1+3 =2[tex]m=\frac{4}{2} \\[/tex]
Divide.
[tex]m=2[/tex]
The slope of the line is 2.
Connor has five nickels in one hand and some dimes in his other hand. He has more than two times as many dimes as nickels. He has fewer than three times as many dimes as nickels.
Answers
Complete question :
How many dimes might he have?
How many coins would he have altogether?
Answer:
11, 12, 13, 14 ;
16, 17, 18, 19
Step-by-step explanation:
Let :
Nickel = n
Dimes = d
Total number of nickels = 5
He has more than 2 times as many dimes as nickels ;
d > 2n
d > 2*5 ; d > 10
He has fewer than 3 times as many dimes as nickels;
d < 3n
d < 3*5 ; d < 15
Meaning he has more than 10 dimes but less than 15.
10 < d < 15
So, d could be ;
11, 12, 13, 14
Number of coins altogether :
11 + 5 = 16
12 + 5 = 17
13 + 5 = 18
14 + 5 = 19
The discriminant of a quadratic equation is the value b^2-4ac what is the value of discriminant of 0=-2x^2+6x+13
Answers
Answer:
-16
Step-by-step explanation:
Given data
We are given the expression
0=-2x^2+6x+13
a=-1
b=6
c=13
The discriminant of a quadratic equation is the value b^2-4ac
Substitute
=6^2-4(-1*13)
=36-4(13)
=36-52
=-16
Hence the discriminant is -16
Solve the equation -3k+6=15
Answers
Answer:
K= -3
Step-by-step explanation:
-3k+6=15
-6 -6
-3k=9
/-3 /-3
k=-3
subtract 6 from both sides.
divide each side by -3 to get K alone
-3 is your answer.
the number of squirrels in a park at the end of the month
Answers
Using the given recursive function, we have that:
a) There will be 132 squirrels in the park at the end of August.
b) As time goes by, the number of squirrels in the park will increase.
What is the recursive function for this problem?
The recursive function for this problem models the number of squirrels in the park at the end of month n+1, considering the amount present at the end of month n, as follows:
[tex]S_{n+1} = 1.6S_n - 30[/tex]
For this problem, we have that at the amount at the end of May is of 70, hence:
[tex]S_{5} = 70[/tex]
Hence, we find the amounts at the end of June, July and August, as follows:
[tex]S_6 = 1.6(70) - 30 = 82[/tex].[tex]S_7 = 1.6(82) - 30 = 101[/tex].[tex]S_8 = 1.6(101) - 30 = 132[/tex].Hence:
a) There will be 132 squirrels in the park at the end of August.
b) As time goes by, the number of squirrels in the park will increase.
More can be learned about recursive functions at https://brainly.com/question/489759
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Use the distributive property of multiplication to evaluate 2(3 – 1). Show your work in your answer.
Answers
Answer:
12
Step-by-step explanation:
2(3 - 1)
multiply each number inside the brackets by 2:
2(3 -1)
18 - 6
solve:
18 - 6
= 12
Mr. Nguyen bought a package of 4 chicken legs and a package of 6 chicken wings. Ms. Dawen bought a package of 3 chicken legs and a package of 6 chicken wings. Mr. Nguyen bought 52 ounces of chicken. Ms. Dawen bought 45 ounces of chicken. How much did each chicken leg and each chicken wing weigh?
Answers
Answer:
weight of legs - 7 ounces
weight of wings - 4 ounces
Step-by-step explanation:
Let the weight of a chicken leg be represented by l
Let the weight of a chicken wing be represented by w
The total weight of Mr. Nguyen's package can be represented by this equation :
4l + 6w = 52
The total weight of Ms. Dawen's package can be represented by this equation :
3l + 6w = 45
To find the weight of the legs and wing, use simultaneous equation
4l + 6w = 52 eqn 1
3l + 6w = 45 eqn 2
Subtract equation 2 from 1
l = 7 ounces
Substitute for l in equation 1
4(7) + 6w = 52
28 + 6w = 52
Solve for w
w = 4 ounces
Which of the following expresses 12 + 42 by using the GCF of the two numbers?
3(9 + 14)
3(4 + 38)
6(2 + 7)
6(6 + 36)
Answers
Which is the BEST system to measure the likelihood of an event occurring? A between 0 and 12 B between 0 and 1 C between 0 and 10
D between 0 and 100
HURRRRYYYYYY 50 POINTS
Answers
Answer:
A BETWEEN 0 AND 12 B BETWEEN 0 AND 1 C BETWEEN 0 AND 10 C BETWEEN 0 AND 100
Step-by-step explanation:
4 1/3 x 6
2 3/5 x 3 1/3
Can you help me? (✿◡‿◡)
Answers
Answer:
26
8 2/3
Step-by-step explanation:
4 1/3 ×6
13/3×6
13/1×2=26
2 3/5 × 3 1/3
13/5 × 10/3
13/1 × 2/3
26/3=8 2/3