Answer:
a. A = 111 tons
b. B = 85 tons.
Step-by-step explanation:
Let the weight of the heavier train be A.
Let the weight of the other train be B.
Translating the word problem into an algebraic equation, we have;
A + B = 196 tons .......equation 1
A - B = 26 .......equation 2
A = 26 + B .........equation 3
Substituting eqn 3 into eqn 1, we have;
26 + B + B = 196
2B = 196 - 26
2B = 170
B = 85 tons.
To find A, using eqn 3;
A = 26 + B
A = 26 + 85
A = 111 tons
Please help solve this
Answer:
the asnwer is c
Step-by-step explanation:
Students in a large district's two high schools are offered a "Second Breakfast' program after their first-period class.
The district's nutrition manager is interested in determining if the program is effective. He takes two independent
random samples of days from the previous years, 20 from high school A and 15 from high school B, and calculates
the mean amount of money, in dollars spent for the program. Which of the following statements concerning the
variability of the sampling distribution of the sample mean is correct?
Answer:
A
Step-by-step explanation:
Random samples of days from the previous years, 20 from high school A and 15 from high school B, and calculates
What is the Nutrition?
Nutrition is the study of food and how it works in your body. Nutrition includes all the stuff that's in your food, such as vitamins, protein, fat, and more. It's important to eat a variety of foods, including fruits, vegetables, dairy products, and grains, so you have what you need to grow and be healthy.
How to determine?Students in a large district's two high schools are offered a "Second Breakfast' program after their first-period class.
Random samples of days from the previous years, 20 from high school A and 15 from high school B, and calculates
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12 is 150% of what number?
Answer:
8
Step-by-step explanation:
Answer: the answer is 8
Tropical islands have many rainstorms during the afternoon heat. One particular tropical island has a 79% chance of a
rainstorm on any given afternoon. Abraham is planning a weeklong stay on this tropical island. Let X represent the
number of days there is an afternoon tropical storm that week. What are the mean and standard deviation of X?
O v. = 1.47,0, = 1.16
Own=3.5, 0x = 1.16
Oy.=5.53.0. = 1.08
O x =7,0, = 3.5
Answer:
C
Step-by-step explanation:
I got it right on Edge.
HELP
Write an equation in slope-intercept form for a line with a slope of -2 and a 8 points
y-intercept of 7. *
Answer:
y=-2x+7
Step-by-step explanation:
slope intercept form is equal to y=mx+c
where y is the y value
x is the x value
m is the gradient
and c is the y intercept
so the equation for this set of values is equal to
y=-2x+7
slope will be the m
and b is the y intercept
y＝mx＋b
y＝-2x＋7
Mike bakes 24 cookies for some friends. He gives the same number of cookies to 2 friends. How many cookies c does each friend receive? Write an equation to represent the number of cookies each friend receives.
Answer:
12 cookies for both friends (assuming you don't get any)
Step-by-step explanation:
24/2=12
since you seem like a kid, that slash means divided by
algebra pls help me:)
Answer:
900
Step-by-step explanation:
its easy
LuANN is playing a math game. She chooses 3 cards. The value of her cards is hownn below
First card: -12
Second card: 3
Third card: -5
What was the sum of the value of LuANNS three cards?
Please Help on this Geometry question
Answer:
50 degrees
Step-by-step explanation:
You can see that angle ADC is composed of angle ADB and angle BDC
Angle ADB is 38 degrees and angle BDC is 12 degrees
Therefore angle ADC is 50 degrees
Angle ADC is opposite from angle ABC so they are congruent.
So angle ABC is 50 degrees
4 unit squares each have of their area shaded. 7 What is the total area that is shaded? square units
Answer:
hgb hfgb,rnvjdfjvfnvjfvjfjgv
Step-by-step explanation:
9y-8x=63 How do I convert this into slope-intercept form?
Answer:
turn it into y=mx+b
Step-by-step explanation:
get y alone
add 8x to both sides
9y=63+8x
divide both sides by 9
63/9=7 8x/9= [tex]\frac{8x}{9}[/tex]
simplify
y=[tex]\frac{8}{9}[/tex]x+7Answer:
y = 0.8x + 7 or
y = [tex]\frac{4}{5}[/tex]x + 7
Step-by-step explanation:
The slope intercept formula is: y = mx + b
9y - 8x = 63
+8x +8x
= 9y = 63 + 8x
9y/9 = 63/9 + 8x/9 ←
We're getting rid of the 9 beside the y, so we have to divde every number by 9.
= y = 0.8x + 7 if you want the 0.8 as a fraction, it'll be [tex]\frac{4}{5}[/tex]
Which value of b will make the
Which value of b will make the inequality true?
b +2 < 20
A b< 18
B b < 22
C b > 18
D b > 22
Answer:
A
Step-by-step explanation:17+2<20
17 is the highest number b can be
You invested 19,000 in two accounts paying 6% and 8% annual interest, respectively. If the total interest earned for the year was $1220, how much was invested at each rate?
Answer:
(1000, 18000) is the answer
Step-by-step explanation:
the graph of a quadratic function f passes through the origin and the maximum value of f is 5 when x=4 find f
Answer:(-5/16)x^2 +(5/2)x
Step-by-step explanation:
what is .064 as a fraction?
Answer:
8/125
Step-by-step explanation:
Eight over one hundred twenty five
Which statement describes this pair of congruent triangles?
H and N are congruent because they are both 58 degrees,
J and L are congruent because they are both 62 degrees,
and K and M are congruent because they are both 60 degrees.
Therefore triangle HJK is congruent to triangle NLM.
Answer:
The answer is C
Step-by-step explanation:
Kause i said so
What are acute and obtuse angles
Answer:
Acute angles are less than 90 degrees and obtuse angles are great than 90 degree angles.
Answer: an acute a is anything lower than 90 degrees. And obtuse is anything higher than 90 degree.
Step-by-step explanation:
1/10 (x + 11) = -2 (8 - x)
Answer: (5/8)x
Step-by-step explanation:
please help me please i really need help please
Answer:
There are a total of 24 players and 4 teams.
Please let me have brainliest :)
Plz help will make brainliest
Answer: A or B is the correct answer i need brainlist so
Step-by-step explanation:
Find the measure of each missing angle. Subject: Geometry
Unit 5: Relationships in Triangles
Homework 1: Triangle Midsegments
Answer:
Q10
∠1 = ∠5 = 180° - 144° = 36°∠2 = 56°∠3 = 180° - 56° = 124°∠4 = 144° - 56° = 88°∠5 = ∠1 = 36°Q11
∠1 = 35°∠2 = 180° - 35° = 145°∠3 = 90° - 35° = 55°∠4 = 180° - ∠5 = 180° - ∠3 = 180° - 55° = 125°∠5 = ∠3 = 55°Measure of angles for figure 1:
∠1=36∠2=56∠3=124∠4=88∠5=36Measure of angles for figure 2:
∠1=35∠2=145∠3=55∠4=125∠5=55The angle is formed by two rays at a common point of the two rays.
For given figure 1:
∠1+144=180 (Sum of angles on same side of transversal is 180°)
∠1=180-144
∠1=36
∠5+144=180(Sum of angles on a line is 180°)
∠5=180-144
∠5=36
Similarly, ∠3=180-56
∠3=124
∠4+36+56=180(Sum of all angles of a triangle is 180°)
∠4=180-36-56
∠4=88
∠2+36+88=180
∠2=56
Thus, measure of angles for figure 1 are ∠1=36, ∠2=56, ∠3=124, ∠4=88, ∠5=36.
For given, figure 2:
∠1=35(Alternate angle on same side of transversal are equal)
∠2=180-35
∠5=180-35-90(Sum of all angles of a triangle is 180°)
∠5=55
∠4+55=180(Sum of angles on a line is 180°)
∠4=180-55
∠4=125
Similarly, ∠2=180-35(Sum of angles on a line is 180°)
∠2=145
∠3=180-35-90(Sum of all angles of a triangle is 180°)
∠3=55
Thus, measure of angles for figure 2 are ∠1=35, ∠2=145, ∠3=55, ∠4=125, ∠5=55
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Jenny bought a bag of cookies for a snack.She gave 2/5 of them to Tim.Time got 14 cookies out of the deal how many cookies came in a bag ?How many cookies did jenny have left to eat for herself
Answer:
There were 35 cookies in the bag, she kept 21 for herself and gave 14 to Tim.
Step-by-step explanation:
2/5 = 40%
14 ÷ 40% = 35
14 is 40% of 35.
35 - 14 = 21
What is 38% of 12?
Please
Answer: 4.56
Step-by-step explanation:
When you come across questions that says [a of b] this means [ab]
If you are still confused, I can provide some examples:
10% of 10=10%×10=12/3 of 6=2/3 × 6=4-----------------------------------------------------------------------------------------
Given
38% of 12
Solve
38% × 12= 4.56
Hope this helps!! :)
Please let me know if you have any questions
Find the slope of a line parallel to the line given
m=-7/8
A. 8/7
B. 7/8
C. -7/8
D. -8/7
Probability is the chance that some event will occur or a guarantee.
A poker hand consists of 5 cards. If the cards have distinct consecutive values and are not all of the same suit, we say that the hand is a straight. For instance, a hand consisting of the five of spades, six of spades, seven of spades, eight of spades, and nine of hearts is a straight. What is the probability that one is dealt a straight
Answer:
The answer is blah blah blah blah
Identify the rule for the transformation shown in the
figure that translates triangle ABC into triangle A'B'C'.
Answer:
(x,y) → (x +4, y + 2)
Step-by-step explanation:
X/4-5>-4 what is this please help
Answer:
4
Step-by-step explanation:
44 yeah yeah what about the other
Nine boys share 2 pizzas equally.
How many pizzas does each boy get?
Answer:
if the two pizzas has 8 slices each and there's 9 boys everyone has one pizza and some leftover
Step-by-step explanation:
Answer:
4/9th??? i think im wrong
7)
2 1
Please help giving Brainly
Answer:
You should use MathPapa.
Step-by-step explanation: