Answer:
[tex]x=5 \quad and \quad y=-5.[/tex]
Step-by-step explanation:
[tex]\left\{\begin{matrix} 6x+9y=-15& \\ -2x+y=-15 & \end{matrix}\right.\\\\\Rightarrow \left\{\begin{matrix} 2x+3y=-5& (1)\\ -2x+y=-15& (2)\end{matrix}\right.\\(1)+(2) \Rightarrow 4y=-20\Rightarrow y=-20:4=-5\\From \quad (2) \Rightarrow x=(-15-y):(-2)=(-15-(-5)):(-2)=(-10):(-2)=5\\Therefore,\\x=5 \quad and \quad y=-5.[/tex]
what is 3/10+4/5 estimated?
Answer:
11/10
Step-by-step explanation:
4/5 = 8/10
8/10 + 3/10 = 11/10 or 1 and 1/10
Answer:
The estimate is 1
Please help urgent I’ll give Brainly if it’s right
Answer:
24
Step-by-step explanation:
4*1.5=6
6*4=24
Answer:
24
Step-by-step explanation:
4*1.5=6*4=24
What is the following quotient?
9+ V2
4-7
PLEASE HELP ME PLEASE
Write your own situation that models the equation shown below:
1) y=3(2)^x
2) y=-3x+25
Answer:
21
Step-by-step explanation:
I need help finding this answer please
Answer:
aand b
Step-by-step a and b
Answer:
It is b and a you welcome
Step-by-step explanation:
can someone help me please
Answer:
4/3
Step-by-step explanation:
You count 4 up from (1,-1) then 3 over to (4,3).
can someone help me please
Answer:
y= -2/5x
Step-by-step explanation:
At x=0 y is 4 and its decreasing
Use the slope equation thing
(y2-y1)/(x2-x1)
the coords for each point are (0,4) , (5,2)
Now fill it in
(2-4)/(5-0)
(-2)/(5)
-2/5x
Solve for x.
x4≥−8
x≥−32
x≤−2
x≤−32
x≥−2
Answer:
[tex]x\geq -32[/tex]
If 0 < f ≤ 90 and cos(22f − 1) = sin(7f + 4), what is the value of f?
f = 3
f = 4
f = 5
f = 6
Answer:
f= 5
Step-by-step explanation:
What is the volume of this cube PLZZZZZZZZZZ
Answer:
1 cubic foot
Step-by-step explanation:
1*1*1 = 1
Answer:
6 maybe
Step-by-step explanation:
Y’all someone help pls 5x-3=21-x
9/12 - 1/3 ? help i will mark brainly
Answer:
decimal: 0.4166666666...
fraction: 15/36 (simplified: 5/12)
Step-by-step explanation:
Need help with math plz thank you
Answer:
Step-by-step explanation:
law of sines
Sin(A) / a = Sin(B)/b
where A = 24
a=BC
B= 59
b =AB
then
Sin(24)/a =Sin(59)/19
0.4067366 / a = 0.8571673 / 19
0.4067366 / a = 0.045114
0.4067366 / 0.045114 = a
9.015 = a
BC = 9.0 mi
HELP I NEED HELP ASAP 11 and 12 WILL MARK BRAINLIST
Answer:
11. 24+25pi
12. 28
Step-by-step explanation:
Triangle area: 8 x 6 x 1/2=24 ft^2
Semi circle area: 5^2pi
Figure area: 24+25pi
12. Count outer squares: 28
9. A figure was dilated by a scale factor of 1/2 .What is the algrebraic
representation for this dilation? *
Answer:
Step-by-step explanation:
not sure if this is correct but (x, y) becomes (1/2x, 1/2y)
can a 10 inch pencil fit inside a rectangular prism that measures 8 inches by 4 inches by 3 inches?
Answer:
No, a 10 inch pencil cannot.
Step-by-step explanation:
A rectangular prism that measures 8 inches by 4 inches by 3 inches is not enough for the pencil. It would need to be beneficial.
Mary worked from Monday to Saturday last week and bought lunch in the company’s restaurant
every day.
Her lunches cost a different amount every day.
Each lunch cost a multiple of 20¢.
The most expensive lunch of the week cost $7.60 and the cheapest one cost $4.40.
Friday’s lunch cost exactly 11⁄2 times as much as Wednesday’s lunch.
Tuesday’s lunch cost $1.20 more than Thursday’s lunch.
(a) What is the minimum total that Mary’s six lunches last week could have cost?
(b) What is the maximum total that Mary’s six lunches last week could have cost?
Answer:
25%. 4.80 divided by 1.20 = 4 x 100 = 40o%
Using logical and arithmetic principles, the minimum and maximum total Mary could spend is $31.20 and $40.40 respectively.
Cheapest lunch fee = $4.40 = 440¢Most expensive = $7.60 = 760¢Minimum total cost of lunch :
Lunch cost will increase steadily by multiple of 20¢ from the cheapest unless given a stated constraint
Monday = $4.80
Tuesday = $4.40 + 1.20 + 0.2 = $5.80
Wednesday = $4.40
Thursday = $5.80 - $1.20 = $4.60
Friday = 3/2($4.40) = $6.60
Saturday = $5.00
Total = $(4.40 + 5.80 + 4.80 + 4.60 + 6.60 + 5.00) = $31.20
Maximum Total :
Lunch cost will decrease steadily by multiple of 20¢ from the most expensive unless given a stated constraint
Monday = $7.40
Tuesday = $7.60 + 1.20 = $6.40
Wednesday = $4.80
Thursday = $7.60
Friday = 3/2($4.80) = $7.20
Saturday = $7.00
Total = $(7.40 + 6.40 + 4.80 + 7.60 + 7.20 + 7.00) = $40.40
Therefore, the minimum and maximum total Mary could spend is $31.20 and $40.40 respectively.
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Help me plz28:8:8:;$;;$;)$,!
According to the property
which choice is equivalent to the quotient
below?
The value of the equation after simplifying is A = √6
What is an Equation?Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.
It demonstrates the equality of the relationship between the expressions printed on the left and right sides.
Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.
Given data ,
Let the equation be represented as A
Now , the value of A is
Let the first number be p = √30
Let the second number be q = √5
And , A = p/q
Substituting the values in the equation , we get
A = √30 / √5
On further simplification , we get
A = √ ( 30/5 )
A = √6
Therefore , the value of A is √6
Hence , the equation is A = √6
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Use the graph below.
Which equation represents the line that is graphed?
A
y=13x+6
B
y=13x−6
C
y=3x+6
D
y=3x−6
Answer:
Hange-san is a big fan of you :) She wants you to help her with her titan experiments! :)
Step-by-step explanation:
Please help.. I got the first part, but I don't understand the second one.
Answer:
three
Step-by-step explanation:
please help its timed
Answer:
B.) to raise a power to a power you need to multiply the exponents
Find AC. Need help fast.
Answer:
dc
Step-by-step explanation:
i know its right
A new car is purchased for $25,000 and over time its value depreciates by one half
every 6.5 years. What is the value of the car 29 years after it was purchased, to the
nearest hundred dollars?
Answer:
y= 1100
Step-by-step explanation:
25000(1/2)^ 28/6.5
=1134.70535634
So the answer is 1100
NO LINKS
How do I solve quadratic word problems????
You first make the quadratic equation then do the quadratic then pick the more right answer.
what is 2 ( 3x+5) - 2( x+ 4)
Answer: 4x+2
Step-by-step explanation:
Let's take our equation to start
2(3x+5)-2(x+4)
Distribute the 2 and -2 into the parenthesis
6x+10-2x-8
Now combine the like terms
6x-2x=4x
10-8=2
4x+2
Answer:
4x + 2
Step-by-step explanation:
Distribute
2(3x+5) - 2 (x+4)
6x + 10 - 2 (x+4
A flagpole casts a 16-foot shadow at the same time a 4-foot pole casts a 5-foot shadow. 4 ft . ¿ How tall is the flagpole
Answer:
64
Step-by-step explanation:
16 times 4
Which postulate can be used to prove the two triangles are congruent?
Answer:
ASA
Step-by-step explanation:
ANGLE SIDE ANGLE IS SUITBLE
1. Which expression shows the prime factorization of 48? A. 2 To The 4th Power x 3 B. 2 To The 3rd Power x 3 To The 2nd Power C. 4 x 12 D. 24 To The 2nd Power
Given PQRS is a square, solve for x.
Answer:
Set the equation up like this (6x - 21) = 45
Add 21 to each side
6x = 66
Now divide each side by 6
x = 11
Hope this helps!