Answer:
$30
Step-by-step explanation:
We know that the cost of all of the books was 228 - 18 = 210 dollars because Mike had 18 dollars left over. Assuming that each book cost the same amount, we know that each book costs 210 / 7 = $30.
Answer:
$30
Step-by-step explanation:
Total amount Mike had = $228
Amount remaining = $ 18
Amount spent on books = 228 - 18 = $210
Cost of wach book = 210/7 = $30
Cost of each book is 30 dollars.
Hannah earned money for mowing the lawn. She buys 4 candy bars with the money she earned. Each candy bar costs $2.
How much money did Hannah earn for mowing the lawn, in dollars?
Answer:$8
Step-by-step explanation:
If you multiply 2(the amount of the candy bars cost) and 4(the amount of candy bars bought) you get the amount that it cost total. ($8)
Answer:
$8 I did this on fast bridge testing
Step-by-step explanation:
Given h(x) = -x - 5, find h(0)
Answer:
-5
Step-by-step explanation:
you plug in zero for x and then just solve.
h(0)=-0-5
=-5
What is the reasoning?
Answer:
yes, i agree. the right angle is 90 and 90+90=180. The law of the congruent angle states that if one angle in a the plane is right then the other connected must be as well, making line L 180.
Step-by-step explanation:
i badly explained it however you should get the answer correct with that. i think... use your brain in addition to mine.
Determine whether the relation {(9, 3), (6,2), (3, 2), (3, 1), (6,-2)} is a function. Explain why/Why
not.
Answer:
Since x=3 produces y=2 and y=1, the relation (9,3),(6,2),(3,2),(3,1),(6,-2) is not a function
Step-by-step explanation:
Its right.
Given the points below, find XY. Round to
the nearest hundredth.
X(-8, 2) and Y(7,-4)
Answer: 16.16
Step-by-step explanation:
xy in this situation, will be the distance between the two points.
(-8,2) (7,-4) Find the distance between the points
To ind the distance, find the difference in the x and y values,square them and add them to find the obtained number square root.
2-(-4) = 6
-8 - 7 = -15
6^2 + (-15)^2 = d^2 where d is the distance
36 + 225 = d^2
261 = d^2
d= [tex]\sqrt{261}[/tex]
d= 16.1554 rounded to the nearest hundredth is 16.16
what is the solution to 4x-14+3x=161
Answer:
x = 175/7
Step-by-step explanation:
Combining the like terms in 4x-14+3x=161, we get
7x = 175, and so:
x = 175/7
Solve for a.
2a - 8 = - 36
Answer:
[tex] - 14[/tex]
Step-by-step explanation:
[tex]2a = - 36 + 8[/tex]
When the - 8 is moved after the equals.. It changes sign
[tex]2a = - 28[/tex]
[tex]a = \frac{ - 28}{2} [/tex]
[tex]a = - 14[/tex]
Double check[tex]2( - 14) - 8 = - 36[/tex]
You can try this in calculator also
Hope this is correct and helpful
HAVE A GOOD DAY!
solve for x~ 1/2(8x + 20) = 18
Answer:
x = 2
Step-by-step explanation:
[tex]\frac{1}{2}(8x+20)=18\\\\ 4x+10=18\\\\4x+10-10=18-10\\\\4x=8\\\\\frac{4x=8}{4}\\\\\boxed{x=2}[/tex]
Hope this helps.
The greater of two consecutive EVEN numbers is 40 less than twice the smaller number. Find the larger number
Answer:
44Step-by-step explanation:
z - some integer
2z - first given even integer (the smaller one)
2z+2 - even integer consecutive to 2z (the larger one)
2(2z) - twice the smaller number
2(2z) - 40 - the number 40 less than twice the smaller number
2(2z) - 40 = 2z + 2
4z - 40 = 2z + 2
2z = 42
2z+2 = 42+2 = 44
check:
2(2z)-40 = 2(42)-40 = 84-40 = 44
How do you do this question? Im working from home and this is the teachers worked example.. with no workings on it Step by step, i need to know what to do for each question ( 1 - 3 )
Answer:
1: 30/ 2:15 / 3:10 / 4: 7.5 / 10: 3
Step-by-step explanation:
divide each day by the number of builders
solve the equation by finding the square roots
w^2-36=-64
Answer:
Rearrange the equation by subtracting what is to the right of the equal sign from both sides of the equation : w^2-36-(-64)=0 Step by step solution : Step 1 : Polynomial Roots Calculator : 1.1 Find roots (zeroes) of : F(w) = w 2 +28 so the answer could be 2.176 or 30.
How do you write 2.745 in words?
-1220 estimated to the nearest integer
Answer:
1000
Step-by-step explanation:
1 is the nearest in 1.2
distribute the following expression 4 ( g + 9 ) PLEASE PLEASE PLEASE SHOW YOUR WORK
Answer:
4g+36
Step-by-step explanation:
4 X g = 4g
4x9 = 36
let f(x)=5x-2 and g (x)=6x+3 find g(f(3))
Answer:
81
Step-by-step explanation:
f(x)=5x-2
g (x)=6x+3
g(f(3))
First find f(3)
f(3) = 5*3 -2
= 15-2
= 13
Then find g(13)
g(13) = 6*13 +3
=78 +3
= 81
Answer:
81
Step-by-step explanation:
Solve 3 as x
5(3)-2
15-2
143
Now use 13 as x
6(13)+3
78+3
81
Hope this helps! Plz award Brainliest : )
The graph shows the relationship between time, in hours, and the population, in thousands of a culture of bacteria.
+
45
40
35
30
Population
25
20
15
10
5
0 1 2 3 4 5 6 7 8
Time (hours)
which statement describes the meaning of the point (010) on the graph?
A After 10 hours there are 10.000 bacteria.
B. After 10 hours there are no more bacteria
C The population began with 10,000 bacteria
D. The population is multiplying itself by 10 each hour
Answer:
Option (C)
Step-by-step explanation:
From the graph attached in the picture,
Graph shows the relationship between time and the population of a culture of bacteria.
Option (A).
After 10 hours there are 10000 bacteria.
Since, at t = 0, number of bacteria = 10000.
False.
Option (B).
After 10 hours there are no more bacteria.
Since, from the given graph bacteria population is increasing exponentially every hour.
Therefore, from t = 0, where the population was 10000, bacteria will be much more in the numbers.
False.
Option (C).
The population began with 10000 bacteria.
True.
Option (D).
The population is multiplying itself by 10 each hour.
Since, growth is exponential therefore, bacteria population is growing faster.
False.
Option (C) is the answer.
is this a function graph?
Answer:
No, this is a relation
Step-by-step explanation:
You can do a vertical line test to see if a function is actually a function or not. Simply draw vertical lines over the graph
If the x-value has 2 or more y values then it is NOT A FUNCTION
Answer:
No! This is not a function.
Step-by-step explanation:
If you write a vertical line through the graph, it will cross through it twice. That means it's NOT a function graph.
15 x 15 x 15 as a power
Answer:
[tex]15^{3}[/tex]
Step-by-step explanation:
[tex]15 * 15 *15 \\15^{3}[/tex]
Which is a counterexample for the conditional statement shown?
If the numerator of a fraction is larger than the denominator of the fraction, then the fraction is greater than 1.
any fraction with a denominator of O
any fraction with a numerator of O
any fraction with a positive numerator and a negative denominator
any fraction with a negative numerator and a positive denominator
Answer: It is c
Step-by-step explanation: Im doing the test and did some research.
But if you are seweing this on 9/22/2020 please wait for me to put the confirmed answer in the comments.
Answer:
It's c
Step-by-step explanation:
solve for k. k/2 +1/2=3
Answer:
[tex]k = 5[/tex]
Step-by-step explanation:
Solve for [tex]k[/tex] :
[tex]\frac{k}{2} + \frac{1}{2} = 3[/tex]
-Multiply both sides of the equation by the denominator [tex]2[/tex] :
[tex]2 \times \frac{k}{2} + \frac{1}{2} = 3 \times 2[/tex]
[tex]k + 1 = 6[/tex]
-Subtract both sides by [tex]1[/tex]:
[tex]k + 1 - 1 = 6 - 1[/tex]
[tex]k = 5[/tex]
So, the value of [tex]k[/tex] is [tex]5[/tex].
Complete the statement with < >, or =. square root of -20 -4
Answer:
-20 < -4
Step-by-step explanation:
-4 is greater value then -20 think of it like its on a number line
---------------------------------------------------------------
-5 -4 -3 -2 -1 0 1 2 3 4 5, the lower the negative, the less it will take off of a positive and the more positive value it holds
I need help on dis! Could someone please help me?! It would me a lot!!!!! Thank chu!
Rewards- Brainliest and 15+ points!
Answer:
1. 2
2. 5/36
3. 8 ¹/₆
4. - 4/11
Step-by-step explanation:
1.
2⁴/₅ + (-¹²/₁₅)
= ¹⁴/₅ - ¹²/₁₅
= ¹⁴/₅ - ⁴/₅
= 14 - 4
5
= 10/5
= 2
-----------------------------
2.
- 3/4 - (- 8/9)
= 5 / 36
-----------------------------
3.
- 3 ¹/₂ (- 2 ¹/₃)
= -7/2 * 7/3
= 7 * 7
2 * 3
= 49/6
= 8 ¹/₆
-----------------------------
4.
- 1/4 ÷ 11/16
= - 1/4 * 16/11
= - 16/44
= - 4/11
Is (5, 2) a solution to the equation y = 8x?
Hey there! I'm happy to help!
To satisfy this equation, the y value has to be 8 times the x.
If you multiply 5 by 8, you get 40, not 2, so this is not a solution. The point (5,40) would be.
Have a wonderful day! :D
All we need to do is substitute and check.
5 = x
2 = y
y = 8x
2 = 8(5)
2 does not equal 40
Best of Luck!
Write an equation in slope intercept form for the line that has a slope of -4 and passes through the point (1,2)
Answer:
y=-4x+6
Step-by-step explanation:
what you have to do for this problem you have take the point 1,2 slide it over to the left one since the slope is negative and up 4 then you do that till you cross the y axis, but in this case you only have to do it once
Evaluate the expression.
3 (x + y), x = 5 and y = 2
Answer:
put x and y value in equation 1
3 (5+2)
3 (7)
21
Step-by-step explanation:
Answer:
21
Step-by-step explanation:
Substitute the value of the variable into the expression and simplify.
Find the value of the expression
Answer:
the value of the expression is 1
Step-by-step explanation: when you solve it step by step you get 1
At 4pm the temp started to change drastically.each hours for 3 hours the temp decrease by 7 which expression best shows another way to write the product for temp change
Answer: C
Step-by-step explanation:
:)
An quadrilateral is graphed on the coordinate plane. One of its vertices is translated 5 units to the right. Which of the following options best represents the translation?
x + 5
x - 5
y + 5
y - 5
Answer:
the answer is X+5
Step-by-step explanation:
hope this helps
Choose the expression that best represents the phrase below.
...the sum of 24 and 3...
A. 3 /24
B. 24 + 3
C. 24 /3
D. 3.24
E. 3-24
F. 24-3
Answer:
B.) 24 + 3
Step-by-step explanation:
The sum is the answer you get after you add two or more numbers. So, you would be adding 24 and 3, giving you B.) 24+3.
Hope this helps!
For any two integers x and y, l x + y l = l x | + l y l
true or false?
