Answer:
240
Step-by-step explanation:
Since David has 60 fewer storybooks than Huiling, take the total number of storybooks, which is 460 and minus it by 60.
460-60=400
Now, there are 5 units, 5units=400
1unit=80
Since Jenny has 3 times as many storybooks as David, Jenny has 3 units, 3unit=80x3=240
Tip: Draw a model to help you visualise the question better.
In order to eliminate the y terms, the y terms must be reciprocals.
The first equation has 9y.
To eliminate y, you need to add to it -9y.
The second equation has y. In order for the second equation to have -9y, you must multiply both sides of the second equation by -9.
Answer: D -9
I believe the answer is 4 from what it looks like it should be because of three lengths on the sides
Answer:
DF = x $
DA=3x $
DV=8x $
Step-by-step explanation:
Se podría representar cada operación de la siguiente manera:
a) x es el monto the dinero en pesos, para la compra de frutas. Entonces representamos a ese monto como dinero frutas (DF).
DF = x $
b) El dinero gastado en abarrotes (DA), es el triple de DF, por lo tanto:
DA=3*DF=3x $
c) Finalmente el dinero gastado en verduras será (DV), es el doble de la sumas de las anteriores osea DF + DA:
DV=2(DA+DF)=2(x+3x)=2(4x)=8x $
Espero te haya ayudado!