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JulijaS [17]
3 years ago
11

Simplify the expression (3.5x - 2.7y) + (-12.8x + 15.8y)

Mathematics
2 answers:
Paladinen [302]3 years ago
7 0

Answer:

−9.3x + 13.1y

Step-by-step explanation:

valentinak56 [21]3 years ago
5 0

Answer: Its -9.3x+13.1y :)

Step-by-step explanation:

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Sara hina and Arslan have a total of RS 390in their wallet . Sara has Rs. 7more than Hina .Arslan has 3 times what sara has . Ho
Brums [2.3K]

Answer:Sara hina and Arslan Have RS79.4,RS 72.4 and RS238.2 respectively.

Step-by-step explanation:

Step 1

Let the amount that hina has be x

the amount that sara has be represented as  7+x

and the amount that Arslan have be represented as 3(7+x)

such that the total amount in their wallet which is 390 can be expressed as

x+7+x + 3(7+x)=390

Step 2

Solving

x+7+x +21+3x=390

5x+28=390

5x==390-28

x=362/5=72.4

Hina has RS 72.4

Sara =7+x==72.4+77= RS 79.4

Arslan =3(7+x)=3 x 79.4=RS 238.2

5 0
3 years ago
Cada uno de los 28 estudiantes en la clase de Romi recaudó al menos $ 25 durante el jump-a-thon. ¿Cuál es la menor cantidad de d
Crank

Answer:

$700.00 porque si cada uno recaudo por lo menos $25.00 entonces multiplicas 28 por los estudiantes y $25.00 por la cantidad menos recaudada equivalente a $700.00

Step-by-step explanation:


7 0
3 years ago
How can I factor 16x^2-44x+24?
Papessa [141]
16x² - 44x + 24
= 4(4x² - 11x + 6)
= 4(x * 4x - 8x - 3x + 2 * 3)
= 4(x - 2)(4x - 3)
8 0
3 years ago
Complete the sentence below with less than,
Gekata [30.6K]

Answer: The Answer is "less than"

Step-by-step explanation:

To find the sum of a series, you find the difference between the first and last term, multiply that by the number of terms, then divide by 2.

For the even numbers, 2 is the first term and 200 is the 100th term (because 2+(100-1)2 is equal to 200). So, (100(2+202)/2 = 10100.

For the odd numbers, 1 is the first term and 201 is the 101th term (because 1+(101-1)2 is equal to 201). So, (101(1+202))/2 = 10251.5.

10100<10251.5 so the sum of the first 100 even numbers is less than the sum of the first odd 101 numbers.

8 0
3 years ago
Read 2 more answers
3. Solve the system of equations using linear combination. <br><br> a + c = 9<br> 8a + 4.5c = 58
lana66690 [7]
Hey I have posted a picture the method I use to solve simultaneous equations is change the sign and follow the new sign.
This involves changing the sign for the second equation and solving it

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3 years ago
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