Answer:
C. 4
Step-by-step explanation:
Solve the second equation to find the coordinate of point B. Show your work step by step. (2 points) 2.5= -2B+6
Answer:
1.75
Step-by-step explanation:
-2b+6 = 2.5
-2b = 2.5-6
-2b = -3.5
b = -3.5 \ -2
b = 1.75
the mean weight of 100 students in a certain class is 71kg the mean weight of boys is 65kg and that of girls is 75kg what is the number of boys and girls
Answer:
There are 60 girls and 40 boys in the class.
Step-by-step explanation:
Given that the mean weight of 100 students in a certain class is 71kg, while the mean weight of boys is 65kg and that of girls is 75kg, to determine what is the number of boys and girls the following calculation must be performed:
1 x 75 + 0 x 65 + 75
0.9 x 75 + 0.1 x 65 = 74
0.8 x 75 + 0.2 x 65 = 73
0.7 x 75 + 0.3 x 65 = 72
0.6 x 75 + 0.4 x 65 = 71
Thus, there are 60 girls and 40 boys in the class.
Twenty five percent of this square is shaded what percent of the square is not shaded
Answer:
75%
Step-by-step explanation:
If 25 percent of a square is shaded, that means that the rest of the square is not shaded. We want an answer that we can add to 25 to get 100. So this means that 75% of the square is not shaded.
Alexander needs to collect at least 120 cans for a food drive to urban community service credit he has already collected 64 items
Answer:
120-64=56
Step-by-step explanation:
Which one plss I need to pass
Answer:
the middle or bottom one
Step-by-step explanation:
What is the surface area of the pyramid formed from the net shown here? The triangles are equilateral, and each triangle has a height of 5.2 centimeters. Write your answer rounded to one decimal point and with the correct unit. the base is 6 cm
Answer:
62.4
Step-by-step explanation:
14 minus a number equals the same number plus 8
A) x= 4 b) x=5 C) x=7 D) x=3
Answer:
b- x=5
Step-by-step explanation:
14-5=8 so your answer would be b
please help please really need help please
Answer:
x = 1
y = -2
Step-by-step explanation:
5x - 2y = 9 -----------(I)
2x + 7y = -12 --------------(II)
Multiply (I) by 7 35x - 14y = 63
Multiply (II) by 2 4x + 14y = - 24 {Now add and thus y will be eliminated}
39x = 39
x = 39/39
x = 1
Plugin x = 1 in equation(I)
5*1 - 2y = 9
5 -2y = 9
-2y = 9 -5
-2y = 4
y = 4/-2
y = -2
If 1,560 students are enrolled in school and 85% ride the bus how many dont ride the bus
Answer:
234 student don’t ride the bus
Step-by-step explanation:
jst do 0.85 tiimes 1560
Answer:
234
Step-by-step explanation:
85% of 1,560 = 1326
1,326 - 1,560 = 234
35 POINTS AND BRAINLIEST PLEASE ANSWER PROPERLY MUST BE DONE IN 10MIN
C 89.54 goes to A
D goes to B
A goes to C
B goes to D
F goes to E
Since the laptop is on sale, that would make it $206.99.
Evaluate 4x + 5y, when x = 7 and y = 10
Answer:
78
Step-by-step explanation:
4 x 7 = 28
5 x 10 = 50
50 + 28 = 78
HELP!!! THIS IS DUE AT 11:59!
Answer:
1. x = 22
2. x = 38
3. x = 24
Step-by-step explanation:
Uhhhhhh
What is the face value of 2 in the number 286?
Answer:
200 or 2 I guess
Step-by-step explanation:
Ion really get wym by “ what is the face”
Identify which sequence of transformations could map
pentagon ABCDE onto pentagon A'B'C'D"E", as shown below.
B
D
A
E
A
ES
B
D
1) line reflection followed by a translation
0
2) translation followed by a rotation
3) dilation followed by a rotation
4) line reflection followed by a line reflection
Answer:
can you ask the qustion better plz
Step-by-step explanation:
9 and 7 find the length of the third side
Answer:
x = √130
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightEquality Properties
Multiplication Property of Equality Division Property of Equality Addition Property of Equality Subtraction Property of EqualityTrigonometry
[Right Triangles Only] Pythagorean Theorem: a² + b² = c²
a is a leg b is another leg c is the hypotenuseStep-by-step explanation:
Step 1: Define
Leg a = 9
Leg b = 7
Hypotenuse c = x
Step 2: Solve for x
Substitute in variables [Pythagorean Theorem]: 9² + 7² = x²[Hypotenuse] Rearrange: x² = 9² + 7²[Hypotenuse] Evaluate exponents: x² = 81 + 49[Hypotenuse] Add: x² = 130[Hypotenuse] [Equality Property] Square root both sides: x = √130-19p ≤ 57
What could p be??
Answer:
81 units 2. Page 57. These items may be used by Louisiana educators for educational purposes. Algebra 1 Answer Key. ITEM 56. A committee at the ...
Step-by-step explanation:
Answer:
p≥−3
Step-by-step explanation:
Looking out for me balcony the angle of elevation to the top of the next building is approximately 22° in the English depression to the bottom of the building approximately 29° if the building is 200 feet away how tall is the building?
Answer:
24.63 meters
Step-by-step explanation:
can smby plz help me ?!
Simplify fully
8n
—
10n
Answer:
The answer is 4/5
Step-by-step explanation:
Simplify the expression.
Hoped this helped!
Brainly, please?
Answer: 4/5
Step-by-step explanation: 8n/10n
8/10
4/5
Please help, geometry homework. Answer true or false for the following statements. The ones that are marked “ T” or “ F “ are already done, if I am wrong, please let me know.
Triangle ABC is similar to Triangle XYZ.
Solve for x and y
What is the boundary line for the linear inequality 4x + 2y < 18?
Answer:
Simplifying
x = 4.5 + -0.5y
Step-by-step explanation:
The boundary line of the inequality is intersecting the x-axis at 4.5.
The given inequality is 4x + 2y < 18.
What is the boundary line for linear inequality?A linear inequality divides the coordinate plane into two halves by a boundary line where one half represents the solutions of the inequality. The boundary line is dashed for > and < and solid for ≤ and ≥. The half-plane that is a solution to the inequality is usually shaded.
Graph the inequality by finding the boundary line, and then shading the appropriate area.
Now, 4x + 2y < 18 can be written as y<−2x+9.
The boundary line of the inequality is given below.
The boundary line of the inequality is intersecting the x-axis at 4.5.
To learn more about the inequalities visit:
https://brainly.com/question/17675534.
#SPJ2
The total budget for a school fundraiser is $350. Supplies and refreshments cost $140. The band for the event charges $70 each hour. What is the number of hours the school can have the band play?
Which equation represents the situation?
Answer:
I think its 3 hours
Step-by-step
also I think its the last one
How to find the missing numbers in two digit division
Answer:
Divide the first number of the dividend (or the two first numbers if the previous step took another digit) by the first digit of the divisor. Write the result of this division in the space of the quotient. Multiply the digit of the quotient by the divisor, write the result beneath the dividend and subtract it.Jun
Step-by-step explanation:
pls brainlist
Which expression is equivalent to 7z + 7z?
Answer:
[tex]14z[/tex]
Step-by-step explanation:
Since these are like-terms, they can be added together.
7z + 7z = 14z
There are 3 space helmets and you take away 2,how many do you have?
Answer:
1 space helmet
Step-by-step explanation:
subtract 3-2 = 1 helmet
m
1. 25
2. 80
3. 90
^answers^
What quadrilateral's diagonals are perpendicular and they bisect each other?
Answer:
Rhombus
Step-by-step explanation:
The diagonals of Rhombus bisect each other and form 4 right triangles. Since they are right triangles, they measure 90 degrees so the diagonals are perpendicular.
12b – 5 = 3
What is b and how do you solve for it
Answer:
12b - 5. = 3
+5 +5
12b = 8
÷12. ÷12
b = 0.6
What is the area for this?
Answer:
120 in²
Step-by-step explanation:
rectangle = 16x4=64
two triangles 1/2(8)(7)=28 each
64+28+28=120
Answer:
88
Step-by-step explanation:
Starting off with 16x4, which isolates the triangle and makes it a little bit easier, you'd get 64, which is the rectangle's area, (I got the 4 from the middle piece). That leaves you with the triangle, which I did 3x8 for, which is 24, usually with triangles you would divide that answer in half because a triangle is only half of the actual area, but since they're two identical triangles, it wasn't necessary.