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Vikki [24]
3 years ago
9

Solve x/2 - 3 = 7 A. 5 B. 10 C. 20 D. 40

Mathematics
2 answers:
12345 [234]3 years ago
4 0

Answer:

The answer is C.

Step-by-step explanation:

Add 3 to both sides and you will get x/2=10. Multiply by the reciprocal on both sides making x=20.

lakkis [162]3 years ago
3 0
The answer is C. Add three to both sides, and you get 10 replacing 7. 10 is now x, and divide
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Tomas reparte 9 kg de mandarinas en mallas de tres cuartos de kilo cada una . ¿Cuantas mallas obtiene?
MrRissso [65]

Responder:

12

Explicación paso a paso:

Dado que:

Kilogramo total de mandarina = 9 kg

Tamaño de cada distribución = 3/4 de kilo

Número de mallas:

Kilogramo / tamaño total por distribución

9 kg ÷ 3/4 kg

9 * 4/3

= (9 * 4) / 3

= 36/3

= 12

7 0
3 years ago
Simplify the following expression (w^8)8
Crank

Answer:

w^64

Step-by-step explanation:

(w^8)^8

both of the powers will be multiplied; hence

w^8*8

w^64

7 0
3 years ago
Tara has $2,000 in her savings account. David has one-tenths as much as Tara in his savings account. How much does David have in
Maru [420]

Answer:

$200

Step-by-step explanation:

You can take .1 times $2000 since 1-tenth is equal to .1

or you can 1 over ten times 2000 over 1 which makes 2000 over 10 and you divide 2000 by 10 to get $200

4 0
3 years ago
Read 2 more answers
Write and solve an equation to find the number. The sum of -5 and a number is -15. a. -5 + n = -15; -10 c. n + 5 = -15; -20 b. 5
lisabon 2012 [21]
Let the number = x
Given: The sum of -5 and a number is -15
Then,
x - 5 = -15
or x = -15 +5 = -10.

Hence, the number is -10
7 0
3 years ago
Using chain rule, what is the derivative of sin(arcsin(x))
sergey [27]
Chain rule
y=f(g(x))
y´=(d f(gx)/d g)(d g/d x)

or

y=y(v)   and v=v(x), then dy /dx=(dy/dv)(dv/dx)

in our case:
y=sin (v)
v=arcsin(x)

dy/dv=d sin (v)/dv=cos (v)=cos(arcsin(x)
dv/dx=d arcsin(x)/dx=1/√(1-x²)

dy/dx=[cos (arcsin(x))]/√(1-x²)

Answer: d sin(arcsin(x))/dx=[cos (arcsin(x))]/√(1-x²)
7 0
3 years ago
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