1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
monitta
3 years ago
10

69. The O'Brien's had $400.0 in a special

Mathematics
1 answer:
LuckyWell [14K]3 years ago
8 0

Hello :D

$40.00 x 3 = $120.00

$20.00 x 2 = $40.00

$120.00 + $40.00 = $160.00

$400.00 - $160.00 = $240.00

There is $240.00 left in the account.

You might be interested in
HELP ASAP!! Lesson 4: Perimeters and Areas of Similar Figures
ziro4ka [17]
Part 1) 
area of triangle=b*h/2
b=2.9 cm
h=9 cm
so
area=2.9*9/2-----> 13.05 cm²

the answer part 1) is 13.05 cm²

Part 2) 
area of the figure=area of rectangle+area of triangle

find the area of rectangle
area rectangle=b*h
b=12 ft
h=?
tan 45=1
tan 45=h/(22-10)----------> h/10=1-------> h=10 ft
area of rectangle=12*10-----> 120 ft²

area of triangle=b*h/2
b=10 ft
h=10 ft
area of triangle=10*10/2----> 50 ft²

area of the figure=120+50----> 170 ft²

the answer Part 2) is 170 ft²

Part 3)
<span>the area of kite is half the product of the diagonals. 
</span>Area=(d1*d2)/2
d1=5+5---> 10 ft
d2=16+8----> 24 ft
area=(10*24)/2----> 120 ft²

the answer Part 3) is 120 ft²

Part 4)
the area of rhombus is half the product of the diagonals. 
Area=(d1*d2)/2
d1=6+6---> 12 m
d2=6+6----> 12 m
area=(12*12)/2----> 72 m²

the answer part 4) is 72 m²

Part 5)

area of the figure=6*area of one triangle

area of triangle=b*h/2
b=4 cm
is an equilateral triangle
applying the Pythagoras theorem
h²=4²-2²-----> h²=12-----> h=2√3 cm

area of triangle=4*2√3/2----> 4√3 cm²

area of hexagon=6*(4√3)----> 24√3 cm²

the answer Part 5) is 24√3 cm²
3 0
3 years ago
The sides of a triangle measure 3 cm, 5 cm, and 7 cm. One of the angles is 120°. Which type of triangle is it?
antiseptic1488 [7]

Answer:

Obtuse triangle

Step-by-step explanation:

If there is at least one angle that is more than 90°, it would make it an obtuse triangle.

~

3 0
3 years ago
Read 2 more answers
What is the equation of the line that is parallel to the line y − 1 = 4(x + 3) and passes through the point (4, 32)
Finger [1]
<span>y − 1 = 4(x + 3) 
y - 1 = 4x + 12
y = 4x + 13, slope = 4
parallel lines, slope is the same so slope = 4
</span><span>passes through the point (4, 32)
</span>y = mx+b
b = y - mx
b = 32 - 4(4)
b = 32 - 16
b = 16

equation
y = 4x + 16
4 0
3 years ago
Read 2 more answers
HELP 30 POINTS please in a hurry
eimsori [14]

To be a function every input value (x) can only have one output value (y)

On the graph there are 2 out put values for x = 2 so it is not a function.

The answer would be C.

8 0
3 years ago
Letter b on number 11 is all I need help with. Thank you
Simora [160]

distance = 500 feet

Since Δ VWX and Δ YZX are similar then the ratios of corresponding sides are equal, that is

\frac{VW}{YZ} = \frac{VX}{YX} = \frac{WX}{ZX}

completing the required values gives

\frac{100}{l} = \frac{60}{30} ( cross- multiply )

60l = 30 × 100 = 3000 ( divide both sides by 60 )

l = 500

distance across the swamp is 500 feet



7 0
4 years ago
Other questions:
  • What are the exact solutions of x2 − 3x − 1 = 0?
    11·2 answers
  • The resultant of two forces acting at a point at right angles to each other is 32 pounds. If the horizontal force is 19 pounds,
    8·2 answers
  • The base angle of an isosceles triangle measures 54 degrees. What is the measure of its vertex angle? A) 27degrees B) 36 degrees
    15·1 answer
  • 22 measures 73º. Find the measure of 24. (The figure may not be drawn to scale.)
    14·1 answer
  • I NEED HELP NOW ASAP
    12·2 answers
  • hi please help asap (20 points) and can you please explain a tool that i can use to solve this problem so that i can study
    14·1 answer
  • If you purchase a DVD player that cost $625 how much sales tax will you pay to the nearest cent if the rate is 7.375%
    13·1 answer
  • Find the area of the triangle
    10·1 answer
  • Divide. Write the answer in simplest form 2 1/2 ÷ 8​
    5·1 answer
  • 13. For the following sequence.
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!