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Delvig [45]
2 years ago
15

Alex got 21 out of 26 on a maths test and Miall got 23 out of 30 for a science test. who got the highest percentage?

Mathematics
1 answer:
Marizza181 [45]2 years ago
4 0
A 21 out of 26 is equal to about an 80%
A 23 out of 30 is equal to about 73%
So Alex scored a higher grade on the science test
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9x + 2y + 6 + 9y + 7<br><br> What is the coefficient of y?<br> What is the constant?
Mademuasel [1]

Answer:

9x+2y+6+9y+7

9x+2y+9y+6+7

9x+11y+13

coefficient of y=11

3 0
2 years ago
Read 2 more answers
What is the slope of this line
xxTIMURxx [149]

Answer:

The slope is 1.

Step-by-step explanation: This answer is correct, because the rise is 2 and the run is 2 which means 2/2 and that equals 1.

3 0
3 years ago
Alguien me ayuda a desplegar -9x+3=5 por favor
Sidana [21]

Answer:

x=-\frac{2}{9}

Step-by-step explanation:

Supongo que te refieres a ''despejar'' la variable.

-9x+3=5

Primero, aisla los terminos independientes en la derecha y los que tienen variables, en la izquierda. En este caso, el 3 es independiente y no está en la derecha. Para poder moverlo, debo hacer la operación contraria. Por ejemplo, está siendo sumado, para ponerlo del otro lado, lo voy a restar.

-9x+3-3=5-3

Resuelvo;

-9x=2

Ahora, tengo un -9 multiplicándome la variable x, para poder deshacer esta multiplicación y dejar la variable sola, debo hacer la operación contraria; es decir, dividir por -9.

\frac{-9x}{-9}=\frac{2}{-9}

Resuelvo;

x=-\frac{2}{9}

Y, si ya no se puede seguir, este sería mi resultado.

Para comprobar si es correcto, reemplazo en la ecuación original por el valor que ya he encontrado y las respuestas deben ser iguales.

-9x+3=5\\-9(-\frac{2}{9})+3=5\\ 2+3=5\\5=5

7 0
3 years ago
Explain why the solution of 5x – 3 &gt; 14.5 or 5 x minus 3 greater than 14.5 or StartFraction 2 x plus 5 over 3 EndFraction les
slega [8]

Answer:

<u> There is no point where x = 3.5</u>

Step-by-step explanation:

Given the inequality

5x – 3 > 14.5

We are to find the range of all values of x

Add 3 to both sides of the equation;

5x - 3 + 3 > 14.5+ 3

5x > 17.5

x > 17.5/5

x > 3.5

Also for the inequality;

\frac{2x+5}{3}

Cross multiply;

2x+5 < 3(4)\\2x + 5 < 12\\

Subtract from both sides;

2x + 5-5 < 12-5\\2x < 7\\x

The solution to both inequalities are x > 3.5 and x < 3.5. <u>Since there is no point where x = 3.5</u>, hence the solution will have solution on all real numbers except at x = 3.5

6 0
2 years ago
CAN YOU HELP ME PLEASE
Levart [38]

Answer:

a. 30 degrees

b. 330 degrees

c. 48π

d. 4π

e. 44π

f. 576π

g. 48π

3 0
2 years ago
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